Trip Plan
Overview
The Big Island requires more planning for families than Oʻahu or Maui because beaches are spread farther apart and many lack the calm, reef-protected conditions that toddlers need. This itinerary focuses on the Kohala Coast and Kona, where the driest weather and calmest bays cluster, with one inland day at the volcano that kids of all ages remember forever.
Family packing list: Reef-friendly sunscreen (SPF 50), pop-up shade tent (Kohala Coast has minimal natural shade), water shoes for lava rock entries, 2+ liters of water per child per day (the Kohala Coast is arid and hot), sand toys, and a cooler with snacks. Beach concession options are limited outside the resort areas.
Day 1 — Kohala Coast: Spencer Beach & A-Bay
8:00 AM
Start at Spencer Beach Park (Ohaiula Beach), the most family-friendly beach on the Big Island. The reef-protected bay has barely any wave action, creating pool-like conditions in waist-deep water. The sandy bottom slopes gently without dropoffs. Lifeguards are on duty. The park has shaded pavilions, restrooms, picnic tables, and a large grassy lawn for playing. It is one of the few Big Island beaches where you can comfortably set up for a full morning without worrying about rough conditions.
Parking: Free at Spencer Beach Park. 15-minute drive north of Hapuna Beach. Large lot, rarely full.
11:30 AM
A-Bay (Anaehoomalu Bay) — Drive 20 minutes south to this palm-fringed bay in the Waikoloa resort area. The water is calmer than Hapuna and the gentle slope makes it appropriate for young swimmers. Walk along the ancient fishponds behind the beach (flat, paved path) and look for sea turtles along the north rock shelf. The resort area nearby has family-friendly restaurants and shops.
Check water quality.
Parking: Free lot at resort beach access. Restrooms, outdoor showers, and changing rooms available.
Afternoon
Walk to the Kings' Trail petroglyph field at Waikoloa (free, 20-minute walk from the resort parking area). Kids love searching for the carved human and animal figures in the lava rock, and the trail is flat enough for older children. Return to A-Bay for sunset; the palm-fringed horizon makes for great family photos.
IF BROWN WATER IS ACTIVE
Spencer Beach is heavily reef-protected and rarely affected by brown water. If conditions are truly poor, the resort pools at Waikoloa are an option, and the petroglyph field and resort shops fill an afternoon easily.
Day 2 — Hawaiʻi Volcanoes National Park
7:00 AM
Drive 2.5 hours south to Hawaiʻi Volcanoes National Park ($30/vehicle, valid 7 days). Kids of all ages are fascinated by the volcanic landscape. Start at the Kilauea Visitor Center, where rangers give short talks and the exhibits explain volcanic activity in kid-friendly terms. Walk the Sulphur Banks and Steam Vents trail (0.5 miles, flat, paved) for an easy, dramatic introduction.
10:00 AM
Walk through the Thurston Lava Tube (Nahuku), a 500-foot tunnel formed by flowing lava. Kids love the cave-like experience. The tube is lit with artificial lighting in the main section. Bring a headlamp for the unlit extension. Then drive to the Crater Rim path near the caldera overlook, where the massive scale of the caldera is visible. Explain that this entire depression was created by volcanic activity.
Afternoon
Drive partway down the Chain of Craters Road, stopping at the family-friendly overlooks (all have guardrails). The Puʻu Loa Petroglyphs trail (1.4 miles round trip, flat boardwalk over lava rock) has over 23,000 petroglyphs and is another kid-favorite. Pack lunch and plenty of water as there are no food services in the park. Head back to Kohala Coast by 3 PM (2.5-hour drive) to avoid kids driving meltdowns.
IF BROWN WATER IS ACTIVE
The volcano is completely inland and unaffected by ocean conditions. Rain gear is more relevant here since the park receives over 100 inches of rain annually. The lava tube is covered and great for rainy days.
Day 3 — Kahaluʻu Bay & Kona Town
8:30 AM
Drive 40 minutes south to Kahaluʻu Bay Beach Park in Kailua-Kona. This is the most family-friendly snorkeling spot on the Big Island: the inner reef is only 2-5 feet deep, the bay is lifeguarded, and sea turtles and colorful fish are abundant and easy to see. Volunteer reef educators are stationed here most mornings to teach kids about marine life. The beach has restrooms, showers, and a small concession area.
Parking: Free lot at Kahaluʻu Beach Park. Fills by 9:30 AM; arrive early. Limited shade; bring a pop-up tent.
Midday
Drive 10 minutes north to Kailua-Kona town for lunch along Aliʻi Drive. Several family-friendly restaurants have outdoor seating overlooking the ocean. Kids enjoy watching surfers at the small break in front of the seawall. Walk along the oceanfront to Huliheʻe Palace for a brief history stop.
Afternoon
Hapuna Beach — Drive 30 minutes north for a final afternoon at this beautiful white-sand beach. Older kids (8+) enjoy the bodyboarding here. Younger children should stay in the very shallow zone near the south end where the sand is gentler.
Check water quality. Return to the resort area for a final sunset dinner.
Tip: Hapuna has a powerful shorebreak. Watch conditions carefully and keep young children in ankle-deep water only.
IF BROWN WATER IS ACTIVE
Kahaluʻu Bay is typically unaffected by brown water due to its location on the dry Kona Coast. If all ocean is poor, the Atlantis Submarine in Kona ($130 adults, $65 children 12 and under) offers an underwater viewing experience without getting wet.
⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — it is not affiliated with the Hawaii Department of Health,
any entity mentioned on this page, or any government agency or hotel brand.
Water quality ratings on this site are estimates based on publicly available testing data and geographic analysis.
They are not real-time measurements and may not reflect current conditions.
Always verify current water quality conditions with the
Hawaii Department of Health Clean Water Branch
before entering the water. This site is for informational purposes only and should not be the sole basis for any swimming decisions.
This site does not recommend or advise anyone to swim at any beach. We share government data and geographic analysis so you can make your own informed decisions. By using this site you accept full responsibility for your own safety. See our Terms of Use for full details.
When in doubt, donʻt go out. 🤙