When vacationing on the water, why not make the most of indoor/outdoor living? ThatÂ’s one of the main concepts behind 
the NISI 2400. Built by NISI Yachts, a division of Tricon Marine, it’s a semi-custom series of yachts measuring 78 feet that are fitted with skylights, large side windows, and fully opening doors to draw in the scenery. Step onto the teak-lined aft deck and you’ll be greeted by a king-size sunpad and two settees. Better yet, the sliding glass door leading to the saloon just steps away can be locked in the open position, letting you and your guests flow back and forth between the spacious living and dining spaces. Hull #1 is available for $3.5 million; further new build prices vary according to outfitting. nisiyachts.com. —D.B.
 
The Envy Sea-Life Mini II Dive & Sport CameraÂ
This new model from the waterproof-camera company takes nine-megapixel pictures and videos at depths up to 130 feet. the details: “Spy mode” takes shots in intervals, so you won’t spook a fish. $259.95, sealife-cameras.com.