As winter sets in, it’s nice to dream of a beautiful beach and warm, crystal clear waters teeming with sea life waiting to be explored. But if you’ve actually made this a reality with a winter diving trip, head to GuardianWitness to post a tip of your break and be in with a chance of winning this week’s competition.

Up for grabs is a Force Ten Vortex 300 tent from Vango worth £450. Submit your tips by clicking on the blue button and using the text tab. Try and include as much detail as possible – location, website address etc – and feel free to add a photo if you own the copyright to it, but it will be the text we’re judging! Your tip should be around 100 words. Terms and conditions.

Closes 4 December at 6am GMT

  • GuardianWitness is the home of user-generated content on the Guardian. Contribute your video, pictures and stories, and browse news, reviews and creations submitted by others. Posts will be reviewed prior to publication on GuardianWitness, and the best pieces will feature on the Guardian site.

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