Wailuku, HI

A lush valley park centered around the iconic Iao Needle, a 1200-foot moss-covered rock pinnacle rising from the valley floor. A paved 0.6-mile trail leads to a viewpoint overlooking the Needle with the West Maui Mountains as a dramatic backdrop. The stream below is shallow enough for kids to wade in. The valley is deeply significant in Hawaiian history as the site of a pivotal battle. The paved trail is accessible for strollers and the whole visit takes about an hour making it a perfect low-effort, high-reward stop.

A world-class aquarium focused on Hawaii marine life with a 750000-gallon open ocean exhibit you walk through in an underwater tunnel. Kids are transfixed by the sharks, rays, and tropical fish swimming overhead and all around them. Touch pools let kids handle sea stars and sea cucumbers. The exhibits are organized by habitat from shallow reef to deep ocean. A turtle lagoon features rescued Hawaiian green sea turtles. The Sphere is an immersive 3D whale experience. This is the best rainy-day option on Maui and worth a visit regardless of weather.

A working tropical farm with a tram tour through 60 acres of crops including pineapple, coffee, coconut, sugar cane, and macadamia nut trees. Kids love the tram ride where the guide lets them taste fruit picked right from the trees. The zipline course over the farm is a hit with older kids. The on-site store sells fresh tropical fruit and the Mill House restaurant is excellent. A coconut husking demonstration and coconut water tasting are fun interactive elements. It is a mellow, educational outing that works for all ages.

A natural blowhole on the rugged northwest coast of Maui that shoots ocean water up to 100 feet in the air when the surf is up. The short hike down from the road (about 0.6 miles) crosses rocky lava terrain to a dramatic coastline. Kids are thrilled by the eruptions of water from the blowhole. The surrounding lava formations and tide pools are fascinating. Stay well back from the blowhole and cliff edges as it is genuinely dangerous up close. The heart-shaped rock formation nearby is another fun find for kids.