Castaway Island

About Castaway Island

Castaway Island is a water park in Salem, NH. Rain Fortress features 180+ ways to get wet, making it an exceptionally expansive water play structure. Rated 4.6 out of 5 stars by 474 visitors.

💬 What Visitors Say

• 💬Bring your own food and drinks or eat before arriving. Food options at Castaway Island are very expensive, and visitors recommend packing meals if possible to save money.
• 💡The Lazy River (lagoon) is the highlight attraction. However, watch small children carefully in the section near the entrance where water backwashes into a culvert—kids can get temporarily stuck there.
• 🕐Arrive early on weekdays to avoid crowds. Weekends and nice weather days draw large crowds with potential wait times to enter the park.
• 💡There is very limited shade throughout the park. Bring an umbrella, wear sunscreen, and plan for sun protection, especially on sunny days.
• 💬The park has only one entrance/exit, so security is tight but means limited ways in and out. Plan your arrival accordingly and be aware entry/exit lines can form during peak times.