D1 Watersports is located at the Portomaso marina, adjacent to the Hilton Hotel's Merkanti Beach Club. We wanted to get a water taxi to Valletta, and the staff were great - helpful and friendly. We had to wait 10 minutes while they finished final checks on the boat (really not a problem) and then had an exhilarating ride from Portomaso to the waterfront in Valletta. It really is the best way to approach Valletta - the views are stunning. Our skipper was young and friendly; chatting to us all the way but leaving is to enjoy the views in peace when we wanted. We were asked what time we wanted picking up (they prefer to pick up on the hour), which was fine and suited us. We were prepared for the pick up to be a little late (it was mid-afternoon in the Med after all), but despite being very short-staffed our boat arrived as planned. A different skipper this time, but equally as friendly and chatted to us about his time in England, yet another example of how friendly Maltese people are towards tourists. We had shared a boat to Valletta, but it was just the three of us on the way back; skimming the waves and enjoying the glorious sunshine. Price was very reasonable - 15 euros each (return)- which was better than the taxi we had later in the week, which cost us 25 euros for a single trip. As good as the taxis are in Malta (and they're great), there's something special about arriving in a speedboat! Would thoroughly recommend this company.

We hired a self-drive boat to visit Comino and see the caves, Blue Lagoon etc. The freedom to try to avoid the crowds (it's was a Sunday in July) was great and it only took approx 30 mins to get to Comino from Portomaso so we had plenty of time to swim. The boat was good and the engine ran well, but the anchor was too small for the size of boat so it did not hold well - my own boat is smaller and I use an anchor twice the size! Also, the fuel gauge on the boat was broken so we had no idea how much fuel we had on board. Apparently 'plenty', but I like to know myself. Finally, the method for charging for fuel seems a bit inaccurate - "Where have you been? OK, that's X euros". I deliberately drove at an economical speed, but would have been charged the same for fuel if we'd gone everywhere at max speed! I would also have liked a proper marine chart, but they suggested I take photo of the cartoon map on the reception wall on my phone. We managed to find everywhere we wanted to see, but only by using the maps/gps on my phone. As another reviewer has said, a fresh water rinse of the windscreen before departure would have helped. There's not much point having a comfortable seat if you have to stand to see where you're going.
It was a great trip that we really enjoyed, but some small improvements to the boat hire would have made it perfect!

We had booked with D1. Upon agreed arrival time we have been left waiting for over 1h. Finally, we had been told that nothing will be available for the day anymore. Not an experience I wish to anyone!