May half-term is one of the best times to enjoy a UK staycation , with longer days, warmer weather and plenty to keep children entertained without the stress of airport queues. Whether you’re after beach days, countryside walks or cultural city breaks, there are plenty of family-friendly destinations across the UK with deals to suit a range of budgets. From coastal escapes in Cornwall to scenic retreats in the Lake District, here’s where to book and the best discounts to help you maximise your holiday budget. Cornwall (iStock) A classic for a reason, Cornwall ticks every box for a family getaway: sandy beaches, rock pools, surf schools and plenty of ice cream stops along the way. Cornish towns like Padstow, St Ives and Newquay are popular choices and easy to reach when staying at one of the many holiday parks in the region.…