If the Blue Grotto is open, boat tours will stop by the entrance to the cave. Here, you will have to wait your turn and transfer to one of the small authorized rowboats, purchase a ticket, and enter the cave.
The wait time to enter can easily be an hour, but you will only spend about 5 minutes inside the cave.
On our Blue Grotto page, you can check the red and green dots to see if the grotto is open or closed. Unfortunately, there is no way to predict if the grotto will be open in advance. In case of high winds and rough seas, the grotto will be closed.
No, Blue Grotto tickets are never included in any tour, and must be paid for in cash at the entrance to the grotto.
No, it is forbidden to swim in the Blue Grotto, though many enter the cave after 5 pm when the cave closes to the public...or by tipping their rowboat skipper a significant amount.