I'm sure you are arriving in Barú because some taxi driver or someone in Cartagena promised you that it was going to be a good experience. I'm just telling you that it will be the worst experience of your life.

Good restaurant next to the beach

Avoid! SCAM! It is a dirty shed made of rubbish with plastic tables, dog excrements on the sand floor and antisanitary. On top of that they give you a "tourist-grade" menu, where simple pork dish costs 55k COP. Pina Colada costs 45k. So the bill will be 100k, right? Hell no, +40k "for the table", meal suddenly became 65k, and they charged... another 80k for the service! The waiter tried to convince me that a 80% tip "is normal here". Avoid this dump.