It was a pleasure! Our guide Josef picked us up at the sea terminal in Malta and took us with his boat to the blue lagoon where we went snorkelling. He accompanied me for snorkelling and bc of his experience he knew well where to look for octopusses, stone fishes etc. My girlfriend stayed in the boat bc of the jellyfishes, so he offered her some wine during the waiting for us. He really took care of me during the snorkelling and saved me from some jellyfishes I didnt notice twice. After the trip he sent us a lot (!) of recommendations for our last days on the island before returning home. Definitely worth it!