The Edinburgh comedian turned 34 today and the couple, who had their first baby last year, decided to get away from it all with a holiday in the idyllic setting.
Iain posted up a thank you to his fans for all their birthday wishes as he was pictured looking sun-kissed in a t-shirt.
He also urged people to donate to Choose Love – to help young refugees instead of sending him any birthday pressies.
He wrote: “Thank you for all the lovely birthday messages today, really means a lot. If you would like to do something nice and have a few quid spare maybe donate to Choose Love and help young refugees across the globe who desperately need our help. Thank you.”
Laura meantime revealed where the two were by posting up some video and photos on her own Instagram.
She wrote: “Oh the places you’ll go…” as she posed with her back against the camera in front of a sign with lots of destinations in the world.
Those who looked closely could spot she was in the Bahamas
Laura also posted footage of herself in the car with Iain as they drove against a sunny backdrop and added: “What a fun and exciting adventure life is with you. Happy Birthday to the best @iaindoesjokes The crew has grown, the car more practical but the experiences and love just gets better and better.”