Infinity Pool at SO/ Bangkok

SO/ Bangkok sits on North Sathorn Road at the south-west corner of Lumphini Park, a short walk from MRT Lumphini (exit 2). Its infinity pool is on the tenth floor alongside the SO/ FIT gym, with loungers set into the shallow edge and an uninterrupted view across the park's trees and lake to the Sukhumvit skyline.

The Summer Solution Day Pass costs THB 1,800 net per person and covers four hours at the pool, the gym, sauna and steam room, towels, two drinks at The Water Club and six hours' parking. Entry starts at 11am with last entry at 5pm. Buy it on the hotel's online shop at least two days ahead; passes are valid for 30 days and are non-refundable.

This is a quiet city pool rather than a party venue, suited to couples and anyone wanting a break from the traffic. Gym access is for over-16s only. Weekday building work nearby can be noisy, so Sunday is the calmest day to book.