Unlimited Family Day Pass at City Treehouse, an indoor playspace in Chelsea with water table and two-story treehouse. Our two-story treehouse delivers loads of fun and adventure. Children will enjoy climbing and sliding, as well as crawling into the secret star cave that is illuminated by hundreds of tiny, twinkling fibre optic lights. A kaleidoscope, peek-a-boo holes, see-through floor and whisper tube are sure to entertain. Climb up. Slide down. Crawl under. Peer across. Whisper through. Gaze into. Get your hands wet in our multi-tiered shallow water table. SPLASH! offers plenty of excitement for children 18 months to 8 years old. Kids everywhere love getting wet, splashing and playing in water. It is also a sensory based, child directed activity - a wonderful stimulus for learning!