diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd58a49..66dc60c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.21.0] - 2023-11-02
+### Added
+    - New API method added:
+        - getStartLocationAdventure
+
 ## [3.20.0] - 2023-04-27
 ### Added
     - isReferenceCode() and isGeocode() methods
diff --git a/src/GeocachingSdk.php b/src/GeocachingSdk.php
index 0af8324..2b45193 100644
--- a/src/GeocachingSdk.php
+++ b/src/GeocachingSdk.php
@@ -46,6 +46,17 @@ public function getAdventure(string $adventureId, array $headers = []): Response
         return $this->getHttpClient()->get('/adventures/' . $adventureId, $headers);
     }
 
+    /**
+     * swagger: GET /v{api-version}/adventures/anon/{adventureId}
+     *
+     * @see https://api.groundspeak.com/documentation#get-adventure-start
+     * @see https://api.groundspeak.com/api-docs/index#!/Adventures/Adventures_GetStartLocation
+     */
+    public function getStartLocationAdventure(string $adventureId, array $headers = []): ResponseInterface
+    {
+        return $this->getHttpClient()->get('/adventures/anon/' . $adventureId, $headers);
+    }
+
     /**
      * swagger: GET /v{api-version}/adventures/search
      *
diff --git a/src/GeocachingSdkInterface.php b/src/GeocachingSdkInterface.php
index 0c66eec..074e3f3 100644
--- a/src/GeocachingSdkInterface.php
+++ b/src/GeocachingSdkInterface.php
@@ -19,6 +19,11 @@ interface GeocachingSdkInterface
      */
     public function getAdventure(string $adventureId, array $headers = []): ResponseInterface;
 
+    /**
+     * @see https://api.groundspeak.com/api-docs/index#!/Adventures/Adventures_GetStartLocation
+     */
+    public function getStartLocationAdventure(string $adventureId, array $headers = []): ResponseInterface;
+
     /**
      * @see https://api.groundspeak.com/api-docs/index#!/Adventures/Adventures_Search
      */