Deep-sea fishing near Ko Olina with Boom Boom Sportfishing

Oʻahu's leeward (west) coast is one of Hawaiʻi's great sportfishing grounds. The water gets deep quickly offshore, and that brings big pelagic fish within a short run of the harbor. If you're staying at Ko Olina, one of the best-known charters on this coast is a short drive away: Boom Boom Sportfishing.

Meet the boat

Boom Boom Sportfishing runs Boom Boom II, a 50-foot sportfisher, with Captain Tony Brown at the helm. The crew fishes for:

• Marlin: blue, striped and black;
• Yellowfin tuna (ahi) and skipjack;
• Mahi-mahi;
• Ono (wahoo);
• Sailfish and spearfish.

West-side waters have produced some huge fish. Boom Boom's crew landed a reported 1,040-pound blue marlin in 2021.

Where it leaves from

Boom Boom II departs from Waiʻanae Boat Harbor (85-471 Farrington Highway, Waiʻanae), about 15 minutes' drive up the coast from Ko Olina. Head north on Farrington Highway, and the harbor is just past Māʻili. Confirm your check-in time and slip when you book.

Private or shared

Boom Boom offers private charters for your own group (up to six people) in 4-, 6-, 8- and 12-hour trips. It also offers shared trips of 4, 6 or 8 hours, where you join other anglers. The boat's website lists current prices and availability. As a guide, private trips were listed from about $1,000 for four hours when we checked in October 2026. Prices change, so check before you book.

A private charter is a great outing for a group staying in villas side by side. One boat, one crew and one big story to tell at dinner.

Tips for a good day on the water

• Go early. Morning seas are usually calmer, and you'll be back by the afternoon with time for the lagoon.
• Prepare for motion. If you get seasick, take your remedy of choice the night before and again in the morning, eat a light breakfast and stay on deck.
• Bring: reef-safe sunscreen, a hat, polarized sunglasses, a light jacket, snacks, water and a cooler for your share of the catch if the crew offers fish.
• Ask about the catch. Policies on keeping fish vary by charter, so ask before you go.
• Tip the crew if they've worked hard for you. It's customary.

Cook your catch at the villa

One of the best parts of a fishing day is dinner. With a full kitchen in every villa and barbecues on the grounds, you can grill fresh ahi or mahi the same evening. Pick up rice, limes and shoyu on the way back, and you have a feast on the lanai.

Prefer something gentler?

If deep-sea fishing is more than you want, Ko Olina Marina also has shorter nearshore trips, plus snorkel and sunset cruises.

Book your base

See open dates for every villa, check this week's specials, or plan a group trip with the group search.

Boom Boom Sportfishing is an independent business; book directly with the charter at boomboomsportfishing.com or (808) 306-4162.