Basically, bring hiking gear or a mountain bike to get the best out of the immediate surroundings, like the Cwm Pennant trail up to the Nantlle ridge or Moel Hebog. You do need to know what you're doing though, so the best place to start for information is the Snowdonia National Park website (01766 770274), which also has lots of other hiking and biking trails to download. There are dozens of other ways to challenge yourself in this neck of the woods too, like the world's fastest zip wire at Penryhn Quarry – that's down a one-and-a-half-kilometre zip line at speeds of up to 160 kilometres per hour. Suddenly that hammock back at the riverside pitch seems like a nice idea. It's an hour's drive away, around the northwestern edge of the national park, if you're tempted.
It doesn't all have to be about hardcore adventure though, with the wonderful beaches of the Llyn Peninsula, Harlech, and Barmouth all within an hour's drive of the site. By the way, expect even the shortest of journeys to take longer than you expect in this part of the world. Criccieth (03000 252239) is the closest seaside town, eight miles and 25 minutes south, a Victorian charmer with two beaches and a castle on the headland, and some nice little cafes and coffee shops, like Tir a Mor (01766 523084).
If you had to choose one beach destination, then make it Harlech — a 40-minute drive away — which has great sands, some amazing walks, and the spectacular, crag-bound fortress that is Harlech Castle (03000 252239).On the way there or back, you could call in at Portmeirion, the Italianate folly-village that was the setting of the cult TV show 'The Prisoner' — and it's hard to find a bigger contrast than between your off-grid rustic base and the surreal, sub-tropical stylings of Welsh architect Clough Williams-Ellis.