diff --git a/src/v2/support/index.js b/src/v2/support/index.js
index e111b5b..df823fa 100644
--- a/src/v2/support/index.js
+++ b/src/v2/support/index.js
@@ -5,6 +5,7 @@ module.exports = ({ instance, headers }) => ({
   organization_fields: require('./organization_fields')({ instance, headers }),
   search: require('./search')({ instance, headers }),
   tags: require('./tags')({ instance, headers }),
+  ticket_activities: require('./ticket_activities')({ instance, headers }),
   ticket_comments: require('./ticket_comments')({ instance, headers }),
   ticket_fields: require('./ticket_fields')({ instance, headers }),
   ticket_forms: require('./ticket_forms')({ instance, headers }),
diff --git a/src/v2/support/ticket_activities/index.js b/src/v2/support/ticket_activities/index.js
new file mode 100644
index 0000000..646e4d0
--- /dev/null
+++ b/src/v2/support/ticket_activities/index.js
@@ -0,0 +1,29 @@
+const validate = require('./validate');
+
+module.exports = ({ instance, headers }) => {
+  const url = `https://${instance}.zendesk.com`;
+
+  return {
+    list: (options = null) => {
+      if (options) throw new Error('no options are allowed');
+
+      return {
+        method: 'GET',
+        url: `${url}/api/v2/activities.json`,
+        headers
+      };
+    },
+
+    show: (options = {}) => {
+      const { error } = validate.show(options);
+      if (error) throw new Error(error.details[0].message);
+
+      const { activity_id } = options;
+      return {
+        method: 'GET',
+        url: `${url}/api/v2/activities/${activity_id}.json`,
+        headers
+      };
+    }
+  };
+};
diff --git a/src/v2/support/ticket_activities/validate.js b/src/v2/support/ticket_activities/validate.js
new file mode 100644
index 0000000..bd5f186
--- /dev/null
+++ b/src/v2/support/ticket_activities/validate.js
@@ -0,0 +1,9 @@
+const Joi = require('@hapi/joi');
+
+const activity_id = Joi.number().min(1);
+
+module.exports = {
+  list: null, // no options
+  show: options =>
+    Joi.validate(options, { activity_id: activity_id.required() })
+};
diff --git a/tests/src/v2/support.test.js b/tests/src/v2/support.test.js
index 00dfa67..a5d8b7e 100644
--- a/tests/src/v2/support.test.js
+++ b/tests/src/v2/support.test.js
@@ -17,6 +17,7 @@ describe('support api', () => {
   test('organization_fields', () => check(support.organization_fields));
   test('search', () => check(support.search, 'function'));
   test('tags', () => check(support.tags));
+  test('ticket_activities', () => check(support.ticket_activities));
   test('ticket_comments', () => check(support.ticket_comments));
   test('ticket_fields', () => check(support.ticket_fields));
   test('ticket_forms', () => check(support.ticket_forms));
diff --git a/tests/src/v2/support/ticket_activities.test.js b/tests/src/v2/support/ticket_activities.test.js
new file mode 100644
index 0000000..567eec2
--- /dev/null
+++ b/tests/src/v2/support/ticket_activities.test.js
@@ -0,0 +1,48 @@
+const endpoint = require('../../../../src/v2/support/ticket_activities');
+
+const instance = 'instance';
+const url = `https://${instance}.zendesk.com`;
+const headers = {
+  'Content-Type': 'application/json',
+  Authorization: 'Basic <64bit_encoded_credentials>'
+};
+
+describe('end users', () => {
+  let ticket_activities;
+
+  beforeEach(() => (ticket_activities = endpoint({ instance, headers })));
+  afterEach(() => (ticket_activities = null));
+
+  describe('list activities', () => {
+    it('should process w/ valid input', () => {
+      expect(ticket_activities.list()).toEqual({
+        method: 'GET',
+        url: `${url}/api/v2/activities.json`,
+        headers
+      });
+    });
+
+    it('should throw error w/ invalid input', () => {
+      expect(() => ticket_activities.list('invalid')).toThrowError();
+    });
+  });
+
+  describe('show activity', () => {
+    it('should process w/ valid input', () => {
+      expect(ticket_activities.show({ activity_id: 123 })).toEqual({
+        method: 'GET',
+        url: `${url}/api/v2/activities/123.json`,
+        headers
+      });
+    });
+
+    it('should throw error w/ invalid input', () => {
+      expect(() => ticket_activities.show()).toThrowError();
+      expect(() => ticket_activities.show('invalid')).toThrowError();
+      expect(() => ticket_activities.show({})).toThrowError();
+      expect(() =>
+        ticket_activities.show({ activity_id: 'invalid' })
+      ).toThrowError();
+    });
+  });
+});