June 7, 2026

PETERSEN’S PLAYBOOK — Travel Health, ER Insights & Smart Vacation Planning

Petersen’s Playbook — Dr. Erik Petersen, DO

Honolulu Health Score: ★★★★☆ (4/5)

An active island paradise — sun, surf, and trails are the draw and the main risks, and you’re a long flight from your own doctor.

Honolulu at a glance

Honolulu and Waikiki are beaches, surf, and volcanic trails on O’ahu — gorgeous and active, but a long way from the mainland if something goes wrong.

Top 5 healthy things to do in Honolulu

  • Swim and snorkel Waikiki’s gentle beaches
  • Sunrise paddle or surf lesson
  • Stroll the beachfront path and Kapi’olani Park
  • Snorkel Hanauma Bay (reservation required)
  • Easy reef walks and tide pools

Best hikes in Honolulu

  • Easiest: Diamond Head (Le’ahi) summit — a short, popular climb with a huge payoff over Waikiki.
  • Most vigorous: Koko Head Crater Trail — 1,000+ old railroad-tie steps straight up; brutal in the heat, so go early with water.
  • Longest: Maunawili Falls or the Lanikai Pillboxes — longer jungle and ridge routes; carry plenty of water.

Best golf in Honolulu

Ala Wai is the busy local muni; Ko Olina and Turtle Bay are the resort rounds — strong tropical sun, so hydrate and cover up.

Healthy eats

Fresh poke, fish, and fruit make eating well effortless here.

Common vacation health risks in Honolulu

  • Sunburn and heat illness
  • Dehydration
  • Coral cuts and reef scrapes
  • Jellyfish and Portuguese man-o’-war stings
  • Swimmer’s ear
  • Sprains and falls on trails
  • Foodborne illness
  • Ocean injuries

Dr. Petersen’s take

“Visitors underestimate Hawaii’s sun and trails. Diamond Head and Koko Head cook people who start at midday with one water bottle. Hike at sunrise, double your water, and rinse jellyfish stings with seawater, not fresh.”

— Dr. Erik Petersen, DO, board-certified emergency & internal medicine

Closest emergency rooms

For a true emergency, call 911 or go to the nearest ER. The Queen’s Medical Center (1301 Punchbowl St) and Straub Medical Center are the major Honolulu hospital ERs.

Closest urgent care & pharmacy

Longs Drugs/CVS and Walgreens are throughout Waikiki and Honolulu; call ahead for overnight. (Hours and locations change — please call ahead to confirm.)

What to pack

  • Prescription medications (original bottles + a list)
  • EpiPen and rescue inhalers
  • Reef-safe sunscreen (SPF 30+) and a hat
  • Electrolyte packets
  • Anti-nausea and anti-diarrheal medication
  • Basic first-aid and blister care

If you get sick in Honolulu

If illness strikes on your Honolulu trip, Vacation Medicine provides virtual urgent care from licensed physicians — right from your hotel or rental. We treat UTIs, sinus and skin infections, pink eye, nausea and diarrhea, allergies, dehydration, and medication-refill emergencies.

Call Vacation Medicine: 850-660-3112 — Seen in minutes. Followed for a week.

Book a Virtual Visit – $100 Flat Fee →

Local hidden gems

  • Best sunrise: the top of Diamond Head
  • Best reset: a quiet morning swim before Waikiki fills up

More Healthy Traveler guides: guide · guide

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