Treasure Island Resort & Casino
5734 Sturgeon Lake Rd, Welch, MN 55089
The Lagoon
Indoor waterparkYes
Slides2
Day passesOffered
Features named by the resort
- Toddler splash area
- Tipping bucket
- Geysers
- Body slide
- Lazy river
- Activity pool
- Adults-only area
- Hot tub
- Swim-up bar
- Cabanas
| Slides | two looping indoor body slides plus a tot-sized toucan slide |
|---|---|
| Who gets in | hotel reservations do not include passes; Island Passport Club members with a hotel stay get free wristbands |
| Day passes | day passes sold at The Lagoon admissions desk |
| Seasons and hours | lazy river, toddler area and slides temporarily closed October 19 to November 17 for a refresh; activity pool and adult area stay open |
Source: the resort's own website, checked Nov 2, 2026:Anything not on those pages is left out rather than guessed.
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