Fryent Country Park

The rolling chalk grassland at Fryent Country Park catches you off guard if you're driving through Hertfordshire - suddenly there's proper countryside, with views that stretch across the county from what feels like nowhere near a major town. It's mainly open grassland with woodland edges, the sort of place where you can walk for miles without seeing a fence or a car park sign, which is rather lovely.

This works best for walkers and anyone after a genuine bit of open air without the crowds. There are several footpaths threading through, ranging from gentle rambles to longer hikes that connect with neighbouring routes. The chalk grassland itself is the real draw - it's botanically interesting and attracts butterflies in summer, so bring binoculars if you're that way inclined. History types will appreciate that you're walking on ancient land, though there's not much in the way of monuments or markers.

It's free to access and takes as long as you want - you could manage a good two-hour walk, or just pop in for a quick stroll. Being east of Elstree, it sits nicely within reach of Elstree Park and Home Farm Glamping if you're basing yourself in the area for a longer stay. The bonus is that it's genuinely quiet compared to more famous green spaces, so if you're staying at Aldenham Country Park nearby, you've got proper woodland walks on your doorstep without fighting for space on popular trails.