Pathumwan Princess Hotel & The Olympic Club

It's a decent pool. It cost 656 baht for the day but was worth it. I've been struggling to get access to a decent pool while in Bangkok, and this one is cheaper by 200 baht than the Virgin Active pool around the corner and the day pass can also be used for the gym.

The pool had three lanes for lap swimming and two for kids and families splashing around. I went at around 4 PM on a national holiday day and it was only slightly busy, but I was still able to swim. The temperature of the water was fine for front crawl.

The changing facilities were clean; lockers and towels were provided. There is a Jacuzzi next to the pool and I saw signs for a steam room though I didn’t use it. Be aware that if it's raining, they will ask you to get out the pool.

Overall, it's decent and I'll be using it regularly I think.

It's a beautiful pool with Jacuzzis right next to it. There are spacious changing rooms, private showers, and a good steam room.

Entry is now THB 589 (about $20, but a snip compared to having to stay there), including the pool for the day. Fairly empty, so lots of scope for lengths. And no conventional chlorine, plus easy to get to, etc.

A very nice pool. Three lanes were marked for lap swimming only. Sodium chlorinate was indistinguishable from seawater. I suggest early morning or later evening as the sun tends to warm it mid-day.

The pool was nice and fresh. There were no lane lines but everybody was swimming lengths so it was OK.