This certainly looks like a lot of fun -
but it is Krabi so I don't think that I will be able to make it :-(
"This event features sea and beach activities such as swimming, kayak paddling, soccer, boxing and a tug of war. There will be demonstrations and food booths and shows at night of the activity on stage. Also, there will be a walk of 3.7 kms on the third and a mountain bike race on the fourth." - from my destination.
but i cannot find more info...
there is a facebook page though?