The Bangkok Raquet club is an absolute gem of a place. For 600 bhat you can use ALL their facilities for a whole day. And they have a ton of facilities. We rounded up a crew and got physical.
Squash and Badminton
Spot of Rock Climbing
Rock climbing costs a little extra. You have to rent your harness and possibly your shoes. You can pay a guy to belay, if you need to.
There is also a bouldering wall which I find harder and more exciting!
After all that exertion, we deserved a big lunch. You can eat by the pool, and then take over the kids pool and scare all the parents until the sun gets low!