The wedding is one day. Your guests are on Maui for three to seven. Giving them a loose plan for the other days goes a long way.
We build a custom activity guide for every wedding, but here are the hits.
For the low-effort crowd (the parents, the jet-lagged, the people who just want to sit): Wailea Beach and Ka'anapali Beach are right there. Both have calm water, good snorkeling near the shore, and restaurants within walking distance. Pool day at the hotel is always a valid option. No one will judge them.
For the moderately adventurous: a snorkel trip to Molokini Crater is the single most popular activity among our wedding guests. It is a half-day boat trip, $80 to $150 per person, and the visibility is usually 100 feet or more. The road to Hana is a full-day commitment (600 curves, 59 bridges) but people remember it forever. A sunrise trip to Haleakala is free with a reservation and one of those things that genuinely changes how you see the world.
For the active group: surf lessons in Lahaina run about $100 for a two-hour group session. Zip-lining in the West Maui Mountains is popular with the younger crowd. Hiking the Pipiwai Trail to the 400-foot Waimoku Falls takes about three hours round trip. Stand-up paddleboarding in Makena is mellow and scenic.
For food people: the Maui Tropical Plantation has a good farm tour and restaurant. The taco trucks in Kihei are legitimately excellent. Mama's Fish House in Paia is the fancy dinner everyone should do once. For a group dinner, we recommend Monkeypod Kitchen or Merriman's in Kapalua.
Seasonal bonus: if your wedding is between December and April, your guests can watch humpback whales from shore. They are everywhere. A whale watch boat tour is $40 to $80 and basically guarantees sightings during peak season.
We put all of this into a digital guide with links, pricing, and our personal notes on each activity. Guests get it a month before the trip so they can plan ahead. It is one of those small touches that makes people feel taken care of.