It depends how much money you've got.
hostels are pretty good.
Also Pete's Eats
isn't bad, the food's alright too, if you like that sort of thing. Plas y Brenin
National Mountain Centre has rooms to rent, I think they have dorms too, but not too sure.
You might also want to check out www.independenthostelguide.co.uk
for independent hostels (obviously)
Don't know about WiFi, sorry.Things to do on Rest Days
Of course, this depends entirely on what sort of things you like doing and what you’ve got in terms of transport. The bus service isn’t bad, but I don’t think they have everything running for the summer tourists that early on. See Traveline Wales
for timetable info.
Okay, things to do:
There’s lots and lots of castles in the area, some of which are free, some of which are not: www.castlewales.com
Llanberis has Electric Mountain
, which I think has some sort of visitors centre.
There are indoor climbing walls, which have lots of bouldering if you lack a partner, at Beacon Climbing Centre
and Plas y Brenin
(for those rainy days!)
If you like steam trains, there’s the Ffestiniog and Welsh Highland Railways
(Bryan would approve)
I’m sure there are lots of other things, but I only ever really go for the mountains…