What we did...
One of the reasons we decided to go to Oahu vs other Hawaiian islands was that there was so much to do! We got through all of the major activities we wanted to but there were lots more that we didn't go to so another trip could easily be in our future.
Coming to Hawaii, one of the things I wanted to do most was see a sea turtle. Well what I really wanted was to be able to swim next to a sea turtle, like we were friends. Well, my dreams came true! We went scuba diving and saw SO MANY sea turtles. The law strictly prohibits touching them but I easily could have, they were so close to us! It was awesome. Surprisingly, there weren't a ton of fish where we went though so it's a good thing we saw the sea turtles or it would've been a bit of a boring dive.
During this trip, Will and I also learned that while we both like to scuba dive, I'm not the best snorkeler. We learned this when we went free-diving/snorkeling with SHARKS!! You read that right! We took a boat out from the North Shore and stopped in the middle of the water and slipped in to a bunch of freely swimming sharks beneath us. No cage, nothing! Apparently, sharks don't actually have any desire to eat people so while we had a guide in the water keeping an eye on the shark's behavior, there wasn't much to it except to keep eye contact with the sharks and be aware of your surroundings and where they are and oh yea, don't make big splashes so sharks don't mistake you for a wounded fish. While it was definitely a shock to initially see the sharks when we got in, it wasn't as scary as I thought it would be. However, the current was pretty rough where we were and I'm apparently not very good at diving down with the snorkel still in my mouth so I drank quite a bit of water. It was pretty crazy looking down and seeing sharks swimming below your feet and it's crazy how close they were. It was hard to get a good picture because I'm not a great snorkeler with the current and it was hard to time when each of us had the GoPro and when each of us were diving down a little deeper- all while trying to maintain eye contact with the sharks! It was a pretty incredible experience though!