The Mana Flyer water taxi service is one of those, and they have a couple of advantages over their competitors.
Price: Travel on one of Mana Flyer's 3 boats, and you will pay a flat rate of fj$80 one way, regardless of which island you are visiting. You are saving anything from fj$15 to fj$85 each way.
Time: With 200hp outboards, Mana Flyers boats are much quicker than the Tiger IV, meaning you get to your destination in less time. They only have one departure per day (11.30am)though if you have a group that needs to travel after that time, they can charter one of their boats for a reasonable price.
The departure point is from Smugglers Cove, Wailoaloa beach, which is a 10 minute taxi ride from Nadi airport. As this service was originally started to get backpackers to the islands, don't expect frills and cabin service. That's not what this company is about... what it is about, is getting you to your destination quickly, cheaply, and having fun while doing it. So if you're uncomfortable with getting your feet wet when boarding, perhaps you would feel better paying the extra money for the Tiger IV.
The boat leaves at approximately 11.30am, and they offer a free pickup service from Nadi area hotels. For those staying at "Smugglers Cove", "Aquarius On The Beach" or any of the other budget Wailoaloa properties, it's only a short stroll across the sand to the boat.
Pickup from the islands can vary a little. It will be afternoon (sometime!) with your boat arriving back at Wailoaloa mid afternoon.
Pre booking is essential, as their one daily departure can fill quickly. Book the Mana Flyer using the form above.