The short version
Five things people forget, five they never use, sunscreen, bring-or-rent snorkel gear ↓
A sweatshirt alone can feel inadequate at the Haleakalā summit. Bring a jacket that blocks wind, plus long pants and closed shoes for sunrise or sunset.
The summit: Haleakalā guide →

Haleakalā summit at sunrise. Photo: Hawaii Tourism Authority (HTA)
It cuts down on sunscreen reapplication and is especially useful for children, snorkeling and boat days.
Bring shoes that can handle mud, rain and slippery paths without being ruined for the rest of the trip. Proper hiking shoes earn their space for Pīpīwai, Hoapili or the longer Haleakalā trails.
Useful on boats, kayaks, the Road to Hāna and any day when wet swimsuits share a car with phones and cameras.
Cell service disappears on parts of the Road to Hāna, around Haleakalā and along remote coastlines. Download the route before leaving.
The drive: Ultimate Road to Hāna guide →

Hāna Highway, East Maui. Photo: Hawaii Tourism Authority (HTA)
Almost anything you forget is easy to buy here: groceries, sunscreen, toiletries, beach toys. Pack the things children specifically need (medications, comfort items, swim gear that fits) and leave room in the suitcase for what you buy.

Big Beach, Mākena. Photo: Hawaii Tourism Authority (HTA)
Maui County allows only mineral sunscreens: zinc oxide and/or titanium dioxide; “reef safe” on a label isn’t enough (checked Oct 2026).
Use rash guards, hats and shade to cut how much sunscreen goes into the water.
Bring your own mask if you already know it fits perfectly. Rent the rest.
Avoid full-face snorkel masks unless a reputable operator specifically approves and supervises them.
First time: Best snorkeling for beginners → The car: Do you need a rental car? → Wet weather: What to do when it rains →
Pack light and don’t worry. Bring the jacket for the summit and leave the beach chairs to the condo.
Swimwear and casual clothes, one or two dinner outfits, a windproof layer and long pants for Haleakalā, a rash guard, shoes that can get wet and muddy, a dry bag and a car charger with offline maps. Rent or buy the bulky beach gear here.
Only mineral sunscreens with zinc oxide and/or titanium dioxide as the active ingredients; a “reef safe” label isn’t enough (checked Oct 2026). Rash guards and hats cut how much you need.
Bring a mask only if you know it fits perfectly, or if you need prescription lenses or snorkel often. Otherwise rent: it’s easy to swap a leaking mask and boats include gear. Skip full-face masks.