The summer solstice is fast approaching and the long days and hours of beautiful twilight are ideal for adventure seekers in northern climes. So whether you’ve done a midnight hike in Iceland at this time of year, or kayaked in the Baltic or the Yukon at dusk, or partied for 24 hours at one of Scandinavia’s famous summer bashes, please share your northern tales.

Please tell us exact locations and prices of trips if you can. Also any recommendations about places to stay. Photographs are welcome but it’s the text we’ll be judging.

Send us your recommendations via GuardianWitness (including website, accommodation and prices etc, if possible).

The best tips will appear on the Guardian Travel website and may also appear in print in Guardian Travel. The winner, chosen by Tom Hall of Lonely Planet, will receive a £200 hotel voucher from UK.hotels.com, allowing you to stay in more than 260,000 places worldwide.

Submit your tip by clicking the GuardianWitness button.

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Closes Tuesday 12 June 2018, 10am BST