A brave rescue

The rescue happened while we were on holiday in Canaries last August. It was exciting and amazing.
I was with my friends and we were swimming in the sea. We were exploring seabed when we saw two sharks on the sea.
There were two boys and they were shouting. One shark was going to them.
My friend and I saw it, and we went to the boys with a boat.
We saved the two boys. We were very brave because the sharks were next to us.