Data-driven beach plan with water quality checks
| Duration | 7 day |
| Island | Big Island |
| Beaches | 8 beaches covered |
| Best For | All experience levels |
Half-mile white-sand crescent on the arid Kohala Coast, one of the Big Island’s largest beaches. Gradual sandy slope, lifeguards on duty daily. Popular for bodyboarding on the shore break. Winter swells bring powerful waves — check posted conditions. $5 state park lot fills by 10 AM weekends. The dry climate means runoff is rare.
Kaunaʻoa Bay, fronted by the Mauna Kea Beach Hotel. Only 30 public parking passes daily (gate opens 7 AM). Fine white sand, gentle slope, calm water most of the year. Green sea turtles at the rocky points on both ends. Despite being next to Hapuna, the bay is more sheltered and has a different feel.
Sheltered crescent at the Waikoloa resort area. Ancient anchialine ponds along the shore. Calm water year round for paddleboarding and kayaking. Snorkel the south lava shelf for reef fish. Free parking, full facilities, gear rentals on site. The most accessible Kohala Coast beach.
Stunning white-sand pocket beach surrounded by black lava. Turquoise water in summer, powerful shore break in winter. Gates open 8 AM, close 7 PM. About 50 parking spaces. Zero shade on the beach — morning visits or an umbrella are essential. No food or water available.
Protected by an offshore reef, creating one of the calmest swimming areas on the Kohala Coast. Below Puʻukoholā Heiau (significant Hawaiian temple). Full facilities including picnic pavilions. The large parking lot rarely fills even on weekends. Best for families and beginners.
Volcanic black sand beach on the Kaʻū coast, about 2 hours south of Kona. Green sea turtles bask on the black sand daily — maintain the legally required 10-foot distance. The water here has strong currents and is not recommended for swimming. Visit for the landscape and turtles, then continue to Hawaiʻi Volcanoes National Park (30 min further).
Black sand beach in Hilo with natural lava-rock tide pools. One of the best spots in Hilo for swimming and snorkeling when conditions are calm. Green sea turtles frequent the shallows. The Hilo side gets more rain than Kona, so check conditions. Free parking, restrooms, and lifeguards on weekends.
| Hapuna parking | $5 state park lot. Fills by 10 AM weekends. Overflow along the access road |
| Mauna Kea passes | 30 passes/day at the gate starting 7 AM. If unavailable, walk in from Hapuna (15 min along the Ala Kahakai trail) |
| Kona to Kua Bay | 15 min north on Hwy 19. Gates 8 AM–7 PM. Bring all supplies |
| Kona to Punaluʻu | 1.5–2 hours south via Hwy 11. Combine with Volcanoes NP (30 min further) |
| Kona to Richardson | 2 hours east via Hwy 19 or Saddle Rd. Different climate zone — expect more rain |
After heavy rain, wait at least 72 hours before entering the ocean. Check each beach’s water quality page for live advisory status.
5-7 days minimum — the Big Island is huge (4,028 sq mi)
Start on the Kohala Coast (resorts), then Kona, Volcano, Hilo, and back. Do not underestimate driving distances.
Rain alternatives on Big Island: Volcanoes National Park, Hilo farmers market, Kona coffee farms, Imiloa Astronomy Center. Also check our brown water advisory guide — avoid the ocean for 72 hours after heavy rain.
Tours listed via Viator and GetYourGuide. Safe to Swim Hawaii may earn a commission if you book, at no extra cost to you.
Free alerts when advisories change at your beach.
⚠️ 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. 🤙