diff --git a/pygeoapi/api/environmental_data_retrieval.py b/pygeoapi/api/environmental_data_retrieval.py
index 945cffb8a..b449ce257 100644
--- a/pygeoapi/api/environmental_data_retrieval.py
+++ b/pygeoapi/api/environmental_data_retrieval.py
@@ -48,13 +48,14 @@
 
 from pygeoapi import l10n
 from pygeoapi.plugin import load_plugin, PLUGINS
-from pygeoapi.provider.base import ProviderGenericError
+from pygeoapi.provider.base import (
+    ProviderGenericError, ProviderItemNotFoundError)
 from pygeoapi.util import (
     filter_providers_by_type, get_provider_by_type, render_j2_template,
     to_json, filter_dict_by_key_value
 )
 
-from . import (APIRequest, API, F_COVERAGEJSON, F_HTML, F_JSONLD,
+from . import (APIRequest, API, F_COVERAGEJSON, F_HTML, F_JSON, F_JSONLD,
                validate_datetime, validate_bbox)
 
 LOGGER = logging.getLogger(__name__)
@@ -64,6 +65,172 @@
 ]
 
 
+def get_collection_edr_instances(api: API, request: APIRequest, dataset,
+                                 instance_id=None) -> Tuple[dict, int, str]:
+    """
+    Queries collection EDR instances
+
+    :param request: APIRequest instance with query params
+    :param dataset: dataset name
+
+    :returns: tuple of headers, status code, content
+    """
+
+    data = {
+        'instances': [],
+        'links': []
+    }
+
+    if not request.is_valid(PLUGINS['formatter'].keys()):
+        return api.get_format_exception(request)
+    headers = request.get_response_headers(api.default_locale,
+                                           **api.api_headers)
+    collections = filter_dict_by_key_value(api.config['resources'],
+                                           'type', 'collection')
+
+    if dataset not in collections.keys():
+        msg = 'Collection not found'
+        return api.get_exception(
+            HTTPStatus.NOT_FOUND, headers, request.format, 'NotFound', msg)
+
+    uri = f'{api.get_collections_url()}/{dataset}'
+
+    LOGGER.debug('Loading provider')
+    try:
+        p = load_plugin('provider', get_provider_by_type(
+            collections[dataset]['providers'], 'edr'))
+    except ProviderGenericError as err:
+        return api.get_exception(
+            err.http_status_code, headers, request.format,
+            err.ogc_exception_code, err.message)
+
+    if instance_id is not None:
+        try:
+            instances = [p.get_instance(instance_id)]
+        except ProviderItemNotFoundError:
+            msg = 'Instance not found'
+            return api.get_exception(
+                HTTPStatus.NOT_FOUND, headers, request.format, 'NotFound', msg)
+    else:
+        instances = p.instances()
+
+    for instance in instances:
+        instance_dict = {
+            'id': instance,
+            'links': [{
+                'href': f'{uri}/instances/{instance}?f={F_JSON}',
+                'rel': request.get_linkrel(F_JSON),
+                'type': 'application/json'
+            }, {
+                'href': f'{uri}/instances/{instance}?f={F_HTML}',
+                'rel': request.get_linkrel(F_HTML),
+                'type': 'text/html'
+            }, {
+                'href': f'{uri}?f={F_HTML}',
+                'rel': 'collection',
+                'title': collections[dataset]['title'],
+                'type': 'text/html'
+            }, {
+                'href': f'{uri}?f={F_JSON}',
+                'rel': 'collection',
+                'title': collections[dataset]['title'],
+                'type': 'application/json'
+            }],
+            'data_queries': {}
+        }
+
+        for qt in p.get_query_types():
+            if qt == 'instances':
+                continue
+            data_query = {
+                'link': {
+                    'href': f'{uri}/instances/{instance}/{qt}',
+                    'rel': 'data',
+                    'title': f'{qt} query'
+                 }
+            }
+            instance_dict['data_queries'][qt] = data_query
+
+        data['instances'].append(instance_dict)
+
+        if instance_id is not None:
+            data = data['instances'][0]
+            data.pop('instances', None)
+            links_uri = f'{uri}/instances/{instance_id}'
+        else:
+            links_uri = f'{uri}/instances'
+
+        if instance_id is None:
+            data['links'].extend([{
+                'href': f'{links_uri}?f={F_JSON}',
+                'rel': request.get_linkrel(F_JSON),
+                'type': 'application/json'
+                }, {
+                'href': f'{links_uri}?f={F_HTML}',
+                'rel': request.get_linkrel(F_HTML),
+                'type': 'text/html'
+            }])
+
+    if request.format == F_HTML:  # render
+        api.set_dataset_templates(dataset)
+
+        serialized_query_params = ''
+        for k, v in request.params.items():
+            if k != 'f':
+                serialized_query_params += '&'
+                serialized_query_params += urllib.parse.quote(k, safe='')
+                serialized_query_params += '='
+                serialized_query_params += urllib.parse.quote(str(v), safe=',')
+
+        if instance_id is None:
+            uri = f'{uri}/instances'
+        else:
+            uri = f'{uri}/instances/{instance_id}'
+
+        data['query_type'] = 'instances'
+        data['query_path'] = uri
+        data['title'] = collections[dataset]['title']
+        data['description'] = collections[dataset]['description']
+        data['keywords'] = collections[dataset]['keywords']
+        data['collections_path'] = api.get_collections_url()
+
+        if instance_id is None:
+            data['dataset_path'] = data['collections_path'] + '/' + uri.split('/')[-2]  # noqa
+            template = 'collections/edr/instances.html'
+        else:
+            data['dataset_path'] = data['collections_path'] + '/' + uri.split('/')[-3]  # noqa
+            template = 'collections/edr/instance.html'
+
+        data['links'] = [{
+            'rel': 'collection',
+            'title': collections[dataset]['title'],
+            'href': f"{data['dataset_path']}?f={F_JSON}",
+            'type': 'text/html'
+        }, {
+            'rel': 'collection',
+            'title': collections[dataset]['title'],
+            'href': f"{data['dataset_path']}?f={F_HTML}",
+            'type': 'application/json'
+        }, {
+            'type': 'application/json',
+            'rel': 'alternate',
+            'title': l10n.translate('This document as JSON', request.locale),
+            'href': f'{uri}?f={F_JSON}{serialized_query_params}'
+        }, {
+            'type': 'application/ld+json',
+            'rel': 'alternate',
+            'title': l10n.translate('This document as JSON-LD', request.locale),  # noqa
+            'href': f'{uri}?f={F_JSONLD}{serialized_query_params}'
+        }]
+
+        content = render_j2_template(api.tpl_config, template, data,
+                                     api.default_locale)
+    else:
+        content = to_json(data, api.pretty_print)
+
+    return headers, HTTPStatus.OK, content
+
+
 def get_collection_edr_query(api: API, request: APIRequest,
                              dataset, instance, query_type,
                              location_id=None) -> Tuple[dict, int, str]:
diff --git a/pygeoapi/flask_app.py b/pygeoapi/flask_app.py
index 26d6094ab..a5d0c2695 100644
--- a/pygeoapi/flask_app.py
+++ b/pygeoapi/flask_app.py
@@ -465,8 +465,8 @@ def get_job_result(job_id=None):
 @BLUEPRINT.route('/collections/<path:collection_id>/radius')
 @BLUEPRINT.route('/collections/<path:collection_id>/trajectory')
 @BLUEPRINT.route('/collections/<path:collection_id>/corridor')
-@BLUEPRINT.route('/collections/<path:collection_id>/locations/<location_id>')  # noqa
-@BLUEPRINT.route('/collections/<path:collection_id>/locations')  # noqa
+@BLUEPRINT.route('/collections/<path:collection_id>/locations/<location_id>')
+@BLUEPRINT.route('/collections/<path:collection_id>/locations')
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/position')  # noqa
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/area')  # noqa
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/cube')  # noqa
@@ -475,6 +475,8 @@ def get_job_result(job_id=None):
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/corridor')  # noqa
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/locations/<location_id>')  # noqa
 @BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>/locations')  # noqa
+@BLUEPRINT.route('/collections/<path:collection_id>/instances/<instance_id>')
+@BLUEPRINT.route('/collections/<path:collection_id>/instances')
 def get_collection_edr_query(collection_id, instance_id=None,
                              location_id=None):
     """
@@ -487,6 +489,14 @@ def get_collection_edr_query(collection_id, instance_id=None,
     :returns: HTTP response
     """
 
+    if (request.path.endswith('instances') or
+            (instance_id is not None and
+             request.path.endswith(instance_id))):
+        return execute_from_flask(
+            edr_api.get_collection_edr_instances, request, collection_id,
+            instance_id
+        )
+
     if location_id:
         query_type = 'locations'
     else:
@@ -494,8 +504,7 @@ def get_collection_edr_query(collection_id, instance_id=None,
 
     return execute_from_flask(
         edr_api.get_collection_edr_query, request, collection_id, instance_id,
-        query_type, location_id,
-        skip_valid_check=True,
+        query_type, location_id, skip_valid_check=True
     )
 
 
diff --git a/pygeoapi/provider/base_edr.py b/pygeoapi/provider/base_edr.py
index 021b2f403..e92f5e730 100644
--- a/pygeoapi/provider/base_edr.py
+++ b/pygeoapi/provider/base_edr.py
@@ -54,7 +54,7 @@ def __init__(self, provider_def):
 
         super().__init__(provider_def)
 
-        self.instances = []
+#        self.instances = []
 
     @classmethod
     def register(cls):
diff --git a/pygeoapi/templates/collections/edr/instance.html b/pygeoapi/templates/collections/edr/instance.html
new file mode 100644
index 000000000..5f4054d69
--- /dev/null
+++ b/pygeoapi/templates/collections/edr/instance.html
@@ -0,0 +1,42 @@
+{% extends "_base.html" %}
+{% block title %}{{ super() }} {{ data['title'] }} {% endblock %}
+{% block crumbs %}{{ super() }}
+/ <a href="{{ data['collections_path'] }}">{% trans %}Collections{% endtrans %}</a>
+{% for link in data['links'] %}
+  {% if link.rel == 'collection' %} /
+    <a href="{{ data['dataset_path'] }}">{{ link['title'] | truncate( 25 ) }}</a>
+    {% set col_title = link['title'] %}
+  {% endif %}
+{% endfor %}
+/ <a href="{{ data['dataset_path'] }}/instances">{% trans %}Instances{% endtrans %}</a>
+/ <a href="{{ data['dataset_path'] }}/instances/{{ data['id'] }}">{{ data['id'] }}</a>
+{% endblock %}
+{% block body %}
+    <section id="collection">
+      <h1>{{ data['title'] }}</h1>
+      <p>{{ data['description'] }}</p>
+      <p>
+        {% for kw in data['keywords'] %}
+          <span class="badge text-bg-primary bg-primary">{{ kw }}</span>
+        {% endfor %}
+      </p>
+      <h3>{% trans %}Instance{% endtrans %} {{ data['id'] }}</h3>
+    </section>
+    <h3>{% trans %}Links{% endtrans %}</h3>
+    <ul>
+    {% for key, value in data['data_queries'].items() %}
+        <li>
+          <a title="{{ value['link']['rel'] }}" href="{{ value['link']['href'] }}">
+          <span>{{ value['link']['title'] }}</span>
+          </a>
+        </li>
+    {% endfor %}
+    {% for link in data['links'] %}
+        <li>
+          <a title="{{ link['rel'] }}" href="{{ link['href'] }}">
+          <span>{{ link['title'] }}</span> (<span>{{ link['type'] }}</span>)
+          </a>
+        </li>
+   {% endfor %}
+    </ul>
+{% endblock %}
diff --git a/pygeoapi/templates/collections/edr/instances.html b/pygeoapi/templates/collections/edr/instances.html
new file mode 100644
index 000000000..a3e5393dc
--- /dev/null
+++ b/pygeoapi/templates/collections/edr/instances.html
@@ -0,0 +1,29 @@
+{% extends "_base.html" %}
+{% block title %}{{ super() }} {{ data['title'] }} {% endblock %}
+{% block crumbs %}{{ super() }}
+/ <a href="{{ data['collections_path'] }}">{% trans %}Collections{% endtrans %}</a>
+{% for link in data['links'] %}
+  {% if link.rel == 'collection' %} /
+    <a href="{{ data['dataset_path'] }}">{{ link['title'] | truncate( 25 ) }}</a>
+    {% set col_title = link['title'] %}
+  {% endif %}
+{% endfor %}
+/ <a href="{{ data['dataset_path'] }}/instances">{% trans %}Instances{% endtrans %}</a>
+{% endblock %}
+{% block body %}
+    <section id="collection">
+      <h1>{{ data['title'] }}</h1>
+      <p>{{ data['description'] }}</p>
+      <p>
+        {% for kw in data['keywords'] %}
+          <span class="badge text-bg-primary bg-primary">{{ kw }}</span>
+        {% endfor %}
+      </p>
+      <h3>{% trans %}Instances{% endtrans %}</h3>
+      <ul>
+      {% for instance in data['instances'] %}
+        <li><a href="./instances/{{ instance['id'] }}">{{ instance['id'] }} </a></li>
+      {% endfor %}
+      </ul>
+    </section>
+{% endblock %}