Warning: If you spend any time looking at the The Surf Office site[^1], you're likely to be ruined for normal coworking spaces. The quality of life and affordability... wow.
I can't imagine the productivity levels would be as high as a normal workspace. Seems like there are a tad too many things that will break your focus- which is what you need most when building a startup.
Ironically, I have found a similar experience to be the exact opposite.
Every few months my team rents a beach house to spend 2-3 days working offsite. We end up exhausted: you are so relaxed its easy to put in more (productive) hours. 30-45min daily 'beach break' (its a beach front property), taking turns to cook simple meals, nightly fireside vision/brainstorming chats.
Been thinking of setting up something like the coworking mentioned in the article in Panama (5hr flight from NYC). Anyone interested?