18 Morris Lane
Consider the first-floor master suite in this 11-room contemporary more like a master spa. It has a hot tub room, which is accessible from the bedroom through sliding glass doors. This room, which has wood floors and walls as well as a skylight, also has another set of sliders that open to the yard, where there is an in-ground heated pool. The hot tub can accommodate six people. The master bath boasts a sauna, a shower, a double vanity and a bidet. There are another three bedrooms and 2½ bathrooms. The house also has a fireplace, five skylights, recessed lighting and a wine cellar. Peggy Carillo and Michael Carillo, Prudential Douglas Elliman Real Estate, Locust Valley, 516-984-1115
50 Berkeley Place
Just about a year old, the hot tub in this yard has colored lights that illuminate the night. It is set up under a gazebo next to the outdoor bar and can accommodate about five people. The fenced yard can be accessed from the den through sliding glass doors. Features of the nine-room high-ranch include wood floors and vaulted ceilings. The layout includes an eat-in kitchen, a living room, dining room, four bedrooms, two bathrooms and laundry room. The house offers several updates, including new windows and siding. The lot size is 100 by 60 feet. Lynn Karp, Re / MAX Innovations, Wantagh, 516-221-7362
537 Fifth St.
Designed for outdoor entertaining, this yard -- landscaped with a brick patio as well as plantings and trees -- has a hot tub that flows into a free-form in-ground pool with a slide. On the other side of the 75-by-175-foot property there is a pergola and an outdoor fireplace. And off the back of the house is an outdoor kitchen, including stainless-steel appliances. A retractable awning extends over this area to the island, where there is space for seating. The eight-room expanded cape features an extended eat-in kitchen, some wood floors, ductless air-conditioning and Andersen and Marvin windows. There are three bedrooms and 2½ bathrooms. Tony Donnino, Signature Premier Properties, Huntington, 631-812-4523