⚠ Always check conditions — Verify with
DOH Clean Water Branch before swimming. Wait 72 hours after heavy rain — children are more susceptible to waterborne illness.
Pre-Beach Safety Checks
- ✓ Check water quality: Visit DOH Clean Water Branch or Safe to Swim Hawaii for current advisories at your beach
- ✓ Check rainfall: Has it rained heavily in the last 72 hours near your beach? If yes, choose a different beach or wait
- ✓ Check surf forecast: NOAA marine forecast for current wave heights and conditions at your beach
- ✓ Check jellyfish calendar: Box jellyfish arrive ~10 days after full moon on south-facing shores
- ✓ Confirm lifeguard status: Will lifeguards be on duty during your planned visit time?
- ✓ Check tide chart: Important for tide pooling and shallow beach areas
- ✓ Plan arrival time: Early morning (7-9 AM) for calmest water and best parking
Packing List for Kids
Sun Protection (Non-Negotiable)
- Reef-safe mineral sunscreen (SPF 50+, zinc oxide or titanium dioxide based)
- UV-protective rash guard (long-sleeve for maximum coverage)
- Wide-brim sun hat with chin strap (so it stays on active kids)
- Baby/kid sunglasses with UV protection and strap
- Pop-up shade tent or beach umbrella rated UPF 50+
Water Safety Gear
- Water shoes or reef shoes (essential for rocky entries and hot sand)
- Swim diapers for babies and toddlers (bring 2-3 extras)
- Snorkel vest or puddle jumper (for kids learning to swim)
- Rash guard (protects from sun and jellyfish stings)
Food and Hydration
- More water than you think you need (Hawaii sun dehydrates fast)
- Snacks that will not melt (crackers, fruit, trail mix)
- Cooler with ice packs to keep drinks and food fresh
- Formula/breast milk supplies if applicable
Comfort and Cleanup
- Beach blanket or mat for clean sitting/playing area
- Beach toys (shovels, buckets for sand play and tide pool viewing)
- Dry change of clothes for each child (including a warm layer for AC car)
- Extra towels (one for drying, one for the car seat)
- Ziplock bags for wet swimsuits and sandy items
- Waterproof phone case for photos and emergency calls
Safety Kit
- Small first aid kit with: adhesive bandages, antibiotic ointment, tweezers (for urchin spines), children's pain reliever
- Vinegar (small bottle for jellyfish sting first aid)
- After-sun aloe gel
- Any child-specific medications (EpiPens, inhalers, etc.)
Beach Day Safety Rules for Kids
- Rule 1: Stay within arm's reach of children near water. Always.
- Rule 2: Never turn your back on the ocean. Teach children this too.
- Rule 3: If the water looks brown, murky, or smells bad — stay out.
- Rule 4: Swim near the lifeguard tower when available.
- Rule 5: Reapply sunscreen every 60-90 minutes and after every water exit.
- Rule 6: Take shade breaks every 30-45 minutes. Watch for signs of heat illness.
- Rule 7: Teach children: if a wave knocks you down, cover your head and neck.
- Rule 8: Look but do not touch marine life. Maintain distance from turtles and seals.
- Rule 9: Know the emergency number: 911. Save your beach location in your phone.
Common Beach Hazards in Hawaii
Waterborne Bacteria
The primary health risk at Hawaii beaches is waterborne bacteria, especially for children. Bacteria levels spike after rainfall when storm runoff washes contaminants into nearshore waters. The DOH Clean Water Branch monitors bacteria at popular beaches and posts advisories when levels exceed safe thresholds. Always check before swimming. Wait 72 hours after heavy rain.
Jellyfish
Box jellyfish appear on south-facing shores approximately 8-12 days after each full moon. Portuguese man-of-war can wash up on any windward beach. If stung by a box jellyfish: rinse with vinegar (not freshwater or urine). Remove tentacles with a credit card edge. For man-of-war: rinse with saltwater, not vinegar. Seek medical attention for children if symptoms are severe or cover a large area.
Shore Break and Currents
Even at calm beaches, wave conditions can change. Shore break can knock children down. Rip currents can pull swimmers away from shore. Teach children: if caught in a current, swim parallel to shore, not against it. If unable to swim out, float and wave for help. Choose beaches appropriate for your children's swimming ability.
Sun and Heat
Hawaii's tropical latitude produces significantly stronger UV radiation than mainland beaches. Children's skin burns faster. Apply sunscreen 15 minutes before exposure, reapply frequently, use physical barriers (rash guards, hats, shade tents), and limit direct sun exposure. Watch for heat illness signs: excessive thirst, headache, dizziness, pale skin. Move to shade and hydrate immediately if symptoms appear.
Book Tours & Activities
Top-rated family experiences. Check water quality above, then plan your trip.
Tours listed via Viator and GetYourGuide. Safe to Swim Hawaii may earn a commission if you book, at no extra cost to you.
Get Hawaii Beach Safety Alerts
Free alerts when water quality changes — the easiest safety check for your beach day.
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health. Always verify with the Hawaii DOH Clean Water Branch before entering the water.
When in doubt, donʻt go out. 🤙