Only free if they don't bother you. I use Deet to make sure.Did not have a problem. Same goes for Tamarin and L'Esprit--lovely plantings and gardens and somehow mosquito free.
I recommend Picaridin in my https://www.sbhonline.com/forums/showthread.php/82795-Complete-Guide-To-Avoiding-Mosquito-BitesCan't wait to try this place in November. Per a recommendation on this forum (can't remember the exact post) we've been using Sawyer Products Picaridin lotion. No smell - no sticky feel and VERY effective!
I recommend Picaridin in my https://www.sbhonline.com/forums/showthread.php/82795-Complete-Guide-To-Avoiding-Mosquito-Bites
I get it here. Walmart has it and Amazon.Andy, do you get that Picaridin on island or stateside and bring down?