Few things are more relaxing than spending time by the water. Whether it’s kayaking on the Dordogne, navigating Dutch canals on a houseboat, whitewater rafting in Slovenia, swimming in Alpine lakes or escaping to a waterside cabin in Scandinavia, we’d love to hear about your favourite river and lake adventures in Europe. If you have a relevant photo, do send it in – but it’s your words that will be judged for the competition. Keep your tip to about 100 words The best tip of the week, chosen by Tom Hall of Lonely Planet, will win a £200 voucher to stay at a Coolstays property – the company has more than 3,000 worldwide. The best tips will appear in the Guardian Travel section and website. We’re sorry, but for legal reasons you must be a UK resident to enter this competition. The competition closes on 3 June at 9am BST Share your tip You can send us your travel tip using this form. Please share your story if you are 18 or over, anonymously if you wish. For more information please see our terms of service and privacy policy.