When can Haven Thorpe Park, caravan sites and camping areas reopen? The dates for holidays resuming As Boris Johnson reveals his roadmap out of lockdown, holidays in 2021 in the UK will be allowed from April 12 Updated The video will auto-play soon8Cancel Play now Caravan parks, campsites and holiday resorts such as Haven Thorpe Park are to reopen in the UK - but there are no set dates for when overseas travel will be allowed again. It is a turning point as the country begins to ease out of lockdown and symbolises a return to normality and for many, it will be a much-needed break and a chance to reunite with loved ones.