Free

The visitor station at 9,200 feet on Mauna Kea offers free stargazing programs with telescopes every evening and sits above the cloud line for some of the best stargazing in the world. The evening program is family-friendly and guides point out planets, galaxies, and constellations through multiple telescopes. The Milky Way from here is so vivid it does not look real. The drive up passes through multiple climate zones from tropical to subarctic which fascinates kids. Children under 13 should not go to the summit (13,796 feet) due to altitude.

A free self-guided tour of the macadamia nut processing factory set in a beautiful orchard. Kids can watch the nuts being processed through glass windows, walk through the macadamia nut orchard, and try free samples of flavored nuts and chocolates. The grounds include a short nature trail and garden. The gift shop has unique souvenirs. It is a quick and easy stop that breaks up a day of driving and the free samples are always a hit with kids. The surrounding orchards with their rows of trees are peaceful to walk through.

A gentle 2.5-mile loop trail around a pristine Adirondack lake that is one of the best family hikes in the region. The trail is mostly flat and passes through beautiful forest with several lake access points where kids can skip rocks and look for frogs. A lean-to along the way makes a great rest stop. The lake is a popular spot for kayaking and fishing. This is the kind of trail where even reluctant hikers have a good time because it feels more like a nature walk than a hike.

A dramatic hiking trail along the bottom of the Niagara Gorge below the Falls with massive boulders, whirlpool rapids, and views you cannot get from the top. The trail descends 300 steps into the gorge and follows the river past huge rock formations. The power of the rapids at the Whirlpool is humbling and the boulder scrambling keeps older kids engaged. This is a challenging trail that requires sure footing and is not for young children. The Discovery Center at the top has exhibits on gorge geology. A completely different perspective on Niagara Falls.

One of the best shore-access snorkeling spots on Maui with a massive coral reef that extends far offshore in shallow calm water. Green sea turtles are almost guaranteed here and the reef is teeming with tropical fish. The water is shallow and calm making it accessible for kids who are new to snorkeling. The entry is sandy and the reef starts about 50 yards from shore. There are no facilities so bring everything you need. The reef extends for over a mile, so the further out you go, the more diverse the marine life becomes.

A 4.6-mile round trip hike up an old road to a fire tower with views over the Hudson Valley, the Catskills, and on clear days all the way to the Berkshires. Along the way, kids pass the ruins of the Overlook Mountain House hotel, a crumbling stone building that feels like discovering a castle in the woods. The fire tower at the summit is restored and climbable. The trail is wide and straightforward but climbs steadily. This hike combines history, mystery, and mountain views in a way kids love.

A natural swimming hole in the Rondout Creek with strikingly blue-green water that looks almost tropical surrounded by Catskill forest. The deep pool is fed by a waterfall and the water is cold but refreshing on a hot summer day. Flat rocks around the edges make great spots for lounging and picnicking. A permit is required for summer weekend visits due to its popularity. The swimming hole is a short walk from the road. This is one of the most beautiful natural swimming spots in New York State.

A scenic 4-mile drive on the Old Mamalahoa Highway north of Hilo through a lush tropical corridor with one-lane bridges, towering palms, and jungle vegetation. Kids love the narrow bridges and the feeling of driving through a tunnel of tropical plants. Pullover viewpoints offer ocean views from the cliff-top road. The drive passes through the small historic town of Pepe ekeo and the botanical garden entrance. It takes about 20 minutes and is a perfect low-effort scenic detour that feels like old Hawaii. The road reconnects to Highway 19 so you do not need to backtrack.

A 46,000-acre wilderness with pristine lakes, ponds, and mountains that sees far fewer visitors than the High Peaks. The hike to Pharaoh Lake is about 4 miles one way on a well-marked trail through beautiful forest. The lake has lean-tos and camping spots along the shore making it a great introduction to backcountry camping for families. Swimming in the clear lake water surrounded by mountains is a highlight. Several shorter hikes to nearby ponds are available for families wanting less distance. It feels genuinely remote.

A 157-acre preserve managed by the Lake George Land Conservancy with gentle trails winding through meadows and forests above the southern tip of Lake George. The 1.5-mile loop trail is perfect for younger hikers and offers nice views of the lake from several overlooks. Wildflowers fill the meadows in spring and early summer. It is a quieter alternative to the more crowded Lake George trails and a great spot for a nature walk with kids who are not ready for a big summit hike.

A small roadside state park with a short trail to a 50-foot waterfall on Lansing Kill Creek. The walk to the falls is just a few hundred yards from the parking lot making it one of the easiest waterfall hikes in the state. The falls cascade over a wide rock ledge into a rocky pool below. A picnic area with tables and grills makes it easy to turn the quick waterfall visit into a longer outing. The park is a perfect rest stop on the way to or from the Adirondacks. No swimming is allowed but the falls are beautiful to watch.

A 2.4-mile round trip hike to a restored fire tower on the summit of Poke-O-Moonshine Mountain with views east to Lake Champlain and west to the High Peaks. The trail is short but gains about 1,280 feet with some steep rocky sections. Kids who enjoy scrambling over rocks will have a blast on the upper section. The fire tower at the top adds extra elevation and the views are exceptional. The cliff face of the mountain is also a famous rock climbing destination visible from I-87.

An 80-foot waterfall in the heart of Hilo that drops into a circular pool surrounded by a cave and tropical vegetation. The falls are visible from a paved overlook just steps from the parking lot making it one of the easiest waterfall viewpoints in Hawaii. On sunny mornings, rainbows form in the mist at the base of the falls, which is how it got its name. A short trail leads to the top of the falls through a grove of enormous banyan trees. The whole visit takes 15 to 30 minutes. A perfect quick stop in Hilo.

A small public beach on one of the most beautiful lakes in the central Adirondacks. The beach is sandy with a gradual entry into clean mountain lake water. It is never as crowded as the Lake George beaches and has a relaxed, old-school Adirondack feel. Kids can swim, build sandcastles, and explore the shoreline while parents enjoy the quiet mountain setting. Nearby, the village has a general store for supplies. The lake is also a great launch point for kayaking and canoeing.

A short half-mile trail through the woods that leads to a stunning waterfall tumbling over a wide rock shelf. The trail is easy enough for younger kids and the payoff is huge. The falls drop about 50 feet and in spring they are roaring. Kids love climbing around the rocks at the base (carefully). You can extend the hike by continuing to the Lake George shoreline at Shelving Rock Bay for a swim in the warm months.

A moderately challenging 7-mile round trip hike that rewards with one of the best views in the Lake George region from open rock ledges at the summit. The trail passes through quiet forest and the summit clearing feels like your own private lookout. Kids who are strong hikers will love the accomplishment of reaching the top. The last stretch is steeper but not technical. Bring a picnic and enjoy lunch with a panoramic view of Lake George spread out below.

At 4,180 feet, Slide Mountain is the highest peak in the Catskills and a worthy goal for families with experienced young hikers. The most popular route from the Slide Mountain parking area is about 5.6 miles round trip with a 1,700-foot elevation gain through beautiful boreal forest. The summit is wooded but a viewpoint near the top gives sweeping views south. Reaching the top is a real accomplishment and a great milestone for kids building toward bigger mountains. The trail is well-marked and well-maintained.

The tallest mountain in the southern Adirondacks at 3,899 feet with a fire tower on the summit and expansive views. The 7.4-mile round trip trail gains about 2,100 feet through dense forest and is a serious hike for families with experienced young hikers. The fire tower adds elevation and the 360-degree view from the top encompasses Indian Lake, Blue Mountain, and dozens of peaks stretching to the horizon. This is often cited as one of the most rewarding hikes in the Adirondacks. A real achievement for any kid who makes it to the top.

A natural blowhole on Kauai south shore that shoots seawater through a lava tube creating a geyser-like eruption and an eerie moaning sound. Kids are mesmerized by the unpredictable eruptions that can shoot 50 feet into the air. The viewing area is safe and paved with a railing. The sound the blowhole makes as air is forced through the tube is haunting and tied to a Hawaiian legend about a giant lizard trapped in the rock. The whole visit takes 15 to 20 minutes and pairs well with a stop at nearby Allerton Garden.

A rugged Hudson Highlands park with challenging trails and some of the most dramatic views of the Hudson River anywhere. The Stillman Trail to the Butter Hill summit is a moderately strenuous loop with panoramic views over the river, West Point, and the surrounding mountains. The trails involve rocky scrambles and steep sections so this is best for families with older kids who are comfortable on rough terrain. The payoff views are worth every step. On a clear day you can see the skyline of New York City.