Data-driven beach plan with water quality checks
| Duration | 2 day |
| Island | Oʻahu |
| Beaches | 3 beaches covered |
| Best For | All experience levels |
The south shore’s most accessible beach. The sandy bottom near the Duke Kahanamoku statue is gentle and shallow, ideal for first-time ocean swimmers. Beginner surf lessons launch from here every morning. Watch for advisory signs near the Ala Wai Canal end, especially after rain. Afternoon brings trade wind chop and bigger crowds — plan your beach time for the morning.
The windward coast’s crown jewel. Two and a half miles of white sand with turquoise water protected by an offshore reef. Less crowded than Waikiki on weekdays. Kayak to the Mokulua Islands only if winds are light (check morning forecast). The beach has lifeguards, restrooms, and a grassy park with shade trees for picnicking. Water quality is generally excellent but check after heavy windward rain.
Water quality note: Check Waikiki and Kailua pages for current conditions before entering the water each day.
| Waikiki parking | Metered street parking or hotel garages ($15–$35/day). Free options on side streets before 8 AM |
| Waikiki to Kailua | 30 min via Pali Highway. Leave by 7:30 AM to beat parking rush |
| Best schedule | Day 1: Beach 8–11 AM, lunch at Duke’s, explore Waikiki afternoon. Day 2: Kailua by 8 AM, beach until noon, lunch in Kailua town |
| Gear rentals | Boogie boards, snorkel sets, and kayaks available at both beaches ($10–$40/day) |
Reef-safe sunscreen: Required by law. Both Waikiki and Kailua have limited natural shade. Apply before arriving and reapply after swimming.
Towels and shade: Bring a beach umbrella if you plan extended time at Kailua — the park has scattered shade trees, but prime shaded spots fill early.
Waterproof phone pouch: Both beaches are popular for kayaking and paddleboarding where water exposure is inevitable. A waterproof pouch lets you keep your phone accessible for checking conditions and taking photos.
Winter (November–March): Both Waikiki (south shore) and Kailua (windward) are typically calm during winter. The big swells hit the North Shore. However, windward rain is more frequent in winter, which can affect water quality at Kailua. Check conditions before heading over the Pali.
Summer (April–October): South swells bring small, fun waves to Waikiki for beginner surfing. Kailua stays calm behind its reef. Trade winds are most consistent in summer, creating afternoon chop at both beaches. Morning sessions are always best.
After heavy rain, wait at least 72 hours before entering the ocean. Check each beach’s water quality page for live advisory status.
3-5 days to see the highlights, 7+ for a thorough experience
Start in Waikiki, then Windward (Kailua/Lanikai), then North Shore, save Hanauma Bay for a calm day
Rain alternatives on Oʻahu: Bishop Museum, Pearl Harbor, Ala Moana Shopping Center, Polynesian Cultural Center. Also check our brown water advisory guide — avoid the ocean for 72 hours after heavy rain.
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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. 🤙