Marsworth Reservoir

Water, sky, and the occasional heron - that's what you get at Marsworth Reservoir, a proper working reservoir just outside Tring that's become something of a haven for birdwatchers and casual walkers. The main draw here is the footpath that runs alongside the water, giving you decent views across the reservoir without any faffing about with gates or visitor centres. Most people spend an hour walking the perimeter, spotting waterfowl and maybe grabbing a bit of peace away from the town. It's free, obviously - it's a reservoir, not a theme park. Spring and autumn are best for serious bird spotting, though honestly any time works fine if you just want to clear your head. The walk itself is flat and accessible, so it's good for families with younger kids, though toddlers might get bored after 40 minutes or so. There's no café, no facilities, so come prepared. If you're staying at Chiltern Yurts just 1.2 miles away, it's an easy post-breakfast stroll. Same goes for Hill Farm Camping a bit further out - many campers use it as a morning route to stretch the legs before heading onwards. The reservoir isn't going to be the reason you come to Buckinghamshire, but it works brilliantly as part of a larger walking circuit around Tring. Worth half a morning at worst, genuinely pleasant at best.