It’s actually just a small shrine and chedi and there’s no temple as such but supposedly it does indicate the site of an older wat, long since crumbled under the water.
In fact the entire low island covers around 100 square metres but a walk around it does reveal different views and the 10 minute trip out there by narrow wooden rowing boat is fun. If you can time your visit for the end of the day then sunset views can be fantastic with another advantage being you can hop straight over the road on your return and watch sunset part II with a cold one from one of the numerous lakeside cafes opposite the jetty.
Tickets are 30 baht per person with a minimum of three passengers and if there’s one or two of you 100 baht will cover it. Definitely 30 baht well spent! Boats are open with no roofs, but life jackets, plus a free lotus bud to leave at the shrine, are included.
You’ll find the jetty towards the eastern end of Chai Kwan Road, just past Prasat Road and is open from around 08:00 until 18:00 or sunset.