Aquatica at SeaWorld Orlando
Orlando, Fla.

The News: New in 2008, Aquatica at SeaWorld Orlando offers a South Sea Islands theme, lush landscaping, and lots of water rides and attractions for all ages and thrill levels. And because it's SeaWorld, there are opportunities to interact with animals. Perhaps its most unique attraction is side-by-side clear water slides that shoot riders underwater where they encounter black and white Commerson's dolphins.

KeyLime Cove Indoor Waterpark
Gurnee, Ill.

The News: The new 65,000-square-foot waterpark is adjacent to Six Flags Great America. Accommodations include more than 400 hotel rooms of varying configurations — some accommodating up to 12 guests — as well as meeting and banquet facilities, a spa, and an arcade.

Maui Sands Indoor Waterpark Resort
Sandusky, Ohio

The News: The park opened in 2008; the waterpark is 55,000 square feet. Accommodations at Maui Sands Resort include a variety of suites and guest rooms with three affiliated hotels, spa and salon, Hawaiian-themed restaurants, and an arcade.

The Water Resort at Pigeon Forge Indoor Waterpark
Pigeon Forge, Tenn.

The News: The resort and 43,000-square-foot waterpark are scheduled to open this fall. Accommodations are 336 one- to three-bedroom condo and hotel units.

CoCo Key Indoor Waterpark at the Mount Laurel Marriott
Mount Laurel, N.J.

The News: The 55,000-square-foot waterpark, which is being added to the existing Mount Laurel Marriott, is scheduled to open in November.

Great Wolf Lodge
Grapevine, Texas

The News: Lodge with 80,000-square-foot indoor waterpark opened this year. Accommodations include 402 all-suite guest rooms. An expansion planned for a December completion will add 203 suites and introduce meeting and function space.

Kalahari Waterpark Resort Convention Center
Wisconsin Dells, Wis.

The News: The resort has added 10 five-bedroom luxury condominiums, complete with home theater system and billiard room. Each sleeps up to 22 people.

The Aquazonia Indoor Waterworld at Glacier Lakes
Farmington, N.Y.

The News: The Aquazonia Indoor Waterworld at Glacier Lakes Resort is scheduled to open in fall 2008. Waterpark square footage is 70,000.

The Great Wolf Lodge Chehalis Reservation
Grand Mound, Wash.

The News: Lodge with 65,000-square-foot indoor waterpark is open. Accommodations include 317 all-suite guest rooms. The property is a joint venture between Great Wolf Resorts and The Confederated Tribes of the Chehalis Reservation.