Other Stuff to check out
Don't fancy the trek up Snowdon,? No problem, just take the train
In Llanberis is a visitor centre to find out about the Dinorwig Hydro power station built inside a mountain. Guided tours that take you deep into the power station itself, plus nice gift shop, cafe and soft play area in the visitor centre.
The Slate Museum in Llanberis is well worth a visit.