The first "must do" for adventure seekers is a jet ski trip out to the Hole in the Rock - hang on to your hats! Or an exhilarating passage through the Black Rocks on the Island Adventurer perfect for exploring Cliffs and Caves.
If you enjoy exploring the underworld, join the scuba divers and explore one of our two nearby wrecks, the Rainbow Warrior at the Cavalli Islands or the HMNZS Canterbury at Deep Water Cove. If you're on the divetrail, don't forget to dip in to Tutukaka and get a day out at the Poor Knights as well.
Another way to take in a breathtaking over view of the Bay of Islands is, of course, by air - a thrilling ride in a helicopter leaves you grinning all day. Or for a heart-in-your-mouth memorably moment, go for some free falling and skydive over the Bay. For a tranquil view of the bay join the Flying Kiwi Parasail team for a surprisingly relaxing adventure.
If you like a spot of fishing, how about upping the stakes and hunting for shark or marlin instead? That'll keep you on your toes. Or if you like to keep your feet on the ground, the walk to Whangamumu is a more earthy sort of adventure; a good hike to a secluded bay and a feeling of being very far from the madding crowd.