If you know what disc golf is, you may be pleased to hear that a course has opened up north of Pattaya, about half way between route 3 and 7. It's a compact, 11 hole course set in a coconut plantation. Holes range from about 40-70 m and are a lot of fun to play. Discs are available to use. The baskets are very good quality.
If you've not heard of disc golf, you should give it a go. Look on YouTube to see what it is about (tldr: it's golf with a frisbee). You'll get started in no time and kids can play too. There is a Thai cafe and plenty of shade. The Thai owners are really friendl