Plan your visit FAQ Can we smoke on site or on the boats? For safety reasons and the comfort of our visitors, volunteers and staff, our site is a no-smoking site. This includes the Portal building, balcony and all of our boat trips and applies to regular cigarettes and electronic cigarettes. We have a smoking area in the garden area adjacent to the Gongoozler, where our allotment is, where smoking is permitted. We kindly ask that you refrain from smoking elsewhere on our site. No smoking is allowed on any of our boat trips, or anywhere in the tunnels. On longer trips, please speak to the crew members on board the boat who will be able to advise you when there will be an opportunity for you to disembark the boat for the opportunity to smoke.