Simple and Effective!
Big thanks to the Developer!

Record GPS tracks for workouts directly from your Apple Watch, with or without your phone. Upload to Strava or export as GPX. Your workout data is automatically saved and recovered if interrupted.
1.3
September 19, 2018
- Fixes watch communication issues on iOS 12
No, GPS Watch Workout is ad-free, allowing for an uninterrupted workout tracking experience.
GPS Watch Workout is available on the Apple Watch, iPhone, and iPod.
The latest version, 1.3, was released on September 19, 2018. Previous updates suggest a less frequent release cycle.
Yes, with Apple Watch Series 2 or later, you can leave your phone at home and record a GPS track directly from your watch.
GPS Watch Workout has an age rating of 4+, making it suitable for a wide range of users.
Yes, after recording, your route can be viewed on a map within the app before uploading or exporting.
No, GPS Watch Workout saves workouts to the Health app but does not read or use any of your existing Health data.