Hey, I can't find a movie I've been trying to find for a long time now, please help

So for some reason a teacher has to take a group of teenagers to a trip to thailand and it seems he hated that, those teens were very very naughty, they went to a party without the teacher's consent when he was sleeping becuz he took many sleeping pills accidentally, later, they are on a beach, in thailand most probably, one of the girls  also gets a ping pong ball stuck in her vagina, sometimes later the teacher also loses his diamonds in the sea and the children there and his own students help him find it, he builds a school for those children with these diamonds and also the students establish good relationship with the teacher who also helps him establish a good relationship with their parents, I might said a few things wrong in this but this is all I remember, also, the teacher had a tattoo and he was hot