Opening Day 2022 is Saturday, May 28th!

Castaway Island Rain Fortress

The Rain Fortress, over 180 ways to get wet!

Castaway Island underwent a HUGE, new expansion during 2018 and now features a crazy-wavy Tidal River, wild water slides, a Rain Fortress, a lagoon for kids, cabana rentals, restaurants, a tiki bar and much more! It's like an island destination that's close to your home! The Rain Fortress is an interactive water activity center for Guests of all ages. Guests experiencing this attraction will never run out of options but will most certainly get wet. Castaway Island is expected to open on May 28th, 29th and 30th. It will be open on Saturdays and Sundays only in June until June 19th.  Then starting June 22nd Castaway Island will be open each operating day from 10:30am-6:00pm thru Labor Day, weather permitting.
Castaway Island water park at Canobie Lake
Castaway Island water park at Canobie Lake

Riders must be at least 40″ tall to ride the tall dark green slides.

About this Attraction

  • Wheelchair entrance for the Rain Fortress is through the Tidal River pathway.
  • Contact a Team Member for access to the individual slides.
  • The ride seat is a water slide.
  • Guest must be able to sit in an upright position and control posture.
  • No headfirst sliding – riders must be lying on back or sitting faced forward.
  • Companion assistance may be required to access the individual slide load area(s).
  • Tandem or group riding is not permitted.
  • Use caution, as the Rain Fortress will be wet and slippery in places.
  • Proper swimwear is required on the slides.
  • Do not enter this attraction if you do not want to get wet.
  • Swim diapers are required for diaper aged children in the attraction.

Click HERE to view more information about Castaway Island!