Dry Tortugas is the 9th least visited National Park in the USA. It is also the only tropical N.P. in the system. Getting to this park requires an additional plane ride from Key West or ferry ride out to the island. Upon arrival, visitors can snorkel, swim, enjoy the beach, and explore the remains of Fort Jefferson. There are also Ranger lead tours available. If you take the Ferry they will provide you with snorkel gear. They also provide you with a breakfast and catered lunch. Once lunch is over they open up a cash bar as well. However keep in mind no food or drink is allowed in the Fort area. There are picnic tables and plenty of beach to enjoy. Camping is also allowed with permit on the island of Garden Key. Personally, I believe taking the ferry is the best and most economical way and gives you more time on the island, however it is a full day from 7am check in to 5 pm back at the port. I also recommend biking to the port. There is plenty of places to lock up your bikes anywhere in Key West. There is a parking garage but it's pricey and crowded. Of course if time is short and money isn't an issue, by all means fly. I mean its a sea plane, that has to be cool.
We were one of the first ones off the Ferry so I could snap a decent photo of the sign. All of these were taken with an old iphone. I did not want to lug my gear with me. I kind regret that a little just because of the bird watching and infrared would have been awesome here.
It was a long day in the sun during the hottest day of the year so far but the water was perfect and the drinks were cheap and strong on the way home! The whole trip centered around getting to this place.
It was 1000% worth it!