I did this last time I was at my boyfriend's lakehouse on the docks...it was probably the most relaxing intense workout I've ever done! It also didn't hurt that the neighbors on their boat were staring at me--it kept my motivation up!
Make sure to maximize your surroundings and use it to your advantage during a long stretch session afterwards! Also make sure to use some (gentle, natural) bug spray if necessary!
Enjoy :) I know I will this weekend.