Padarn Country Park
This country park in Snowdonia has a number of splendid way-marked walking trails to follow. There are 800 acres to explore through oak woodland and along lakeside paths.
The beautiful Llyn Padarn is the centrepiece of the park. You can stroll along the lakeside or catch the Llanberis Lake Railway which runs along the easten edge of the lake. It's a splendid 1 hour ride with views of the 13th century Dolbadarn Castle and the twin lakes of Llyn Padarn and Llyn Peris. Mount Snowdon, the highest peak in England and Wales makes a wonderful backdrop.
To continue your walking in the area you could visit the spectacular Llanberis Waterfall. It is located just to the south of the country park and has a nice footpath running to the 100ft high falls.
For splendid views of the area you could try the climb to Moel Eilio from Llanberis.