In reply to gingerdave13: Definitely! An approach up the SW ridge is great, with a small bit of scrambling to gain the summit if desired. You can then explore the Croesor/Rhosydd plateau with its various lakes and quarries and head onto Moelwyn Mawr.
Another alternative is a loop from Beddgelert along the Aberglaslyn Pass to Nantmor, then through the back roads and up the SW ridge. Descent to Geli-lago and back via Llyn Dinas. Moel Meirch and Yr Arddu (the western ones) are both worth an explore - lovely wild area. Navigation isn't straight forward, but I never think it's that tricky if you keep an eye on the map.