Hawaii in $210s-$380s RT

You already know what to expect from a trip to Hawaii, right? Gorgeous hikes, beautiful beaches, rock-climbing fish, yada yada yada.

Oh, you didn't know about the climbing fish? They're called 'o'opu, and they can climb up a 300-meter waterfall without breaking a sweat. Their secret? Fused fins that double as suction cups, allowing them to stick to rocks and gradually scoot up the falls with their mouths. You can spot them at Akaka Falls on the Big Island, although you might want to bring binoculars.

Here's the kicker: Scientists aren't even sure why the fish go to all that trouble. Maybe they're just looking for a little adventure, just like the rest of us :-)

P.S. Hawaii is a beautiful place to visit, but overtourism can be a burden on the islands. Check below for some tips on traveling sustainably.