Mashantucket ― Great Wolf Resorts, the Chicago-based developer known for indoor water parks, will officially break ground here Feb. 1 on a $300 million project adjacent to Foxwoods Resort Casino.

Foxwoods and its owner, the Mashantucket Pequot Tribe, announced Tuesday the Great Wolf Lodge at Mashantucket is scheduled to open in 2025.

The development will take shape on 13 acres of reservation land between Foxwoods’ Rainmaker entrance and the Pequot Outpost gas station/convenience store on Foxwoods Boulevard, where some preliminary site work has taken place. The resort will feature a 91,000-square-foot indoor water park, a 61,000-square-foot family entertainment center, family restaurants and lodging.

The Mashantucket development will be Great Wolf’s 23rd North American resort and its third in the northeastern United States, joining resorts in Fitchburg, Mass., and in Scotrun, Pa., in the Pocono Mountains.

The tribe first revealed plans for the resort during Foxwoods’ 30th anniversary celebration last February. At a contract-signing in March, Great Wolf officials said they expected to start construction this past summer and complete the project in 2024, a timetable that has been pushed back.

They also said the resort would include a 550-room hotel and attract up to 600,000 visitors a year from within a 6½-hour drive.

The Mashantuckets originally engaged with Great Wolf in 2007, when the tribe and the developers pursued a plan to build an indoor water park on tribe-owned, non-reservation land along Route 214 in Ledyard. After town officials approved a zoning change for the project, it was abandoned in the face of the Great Recession.

Great Wolf and the tribe also discussed a water park in 2010 and again in 2014.

b.hallenbeck@theday.com