There is no need to let the a few drops of refreshing rain stop you from enjoying your holiday, there are still plenty of things to do if curling up with a good book or film isn't your thing.
Why not take a trip Amlwch, and nearby Pary's Mountain, which was once home to one of the world largest copper mines. You can tour the Copper Kingdom Heritage Centre, to learn how copper mining made Amwlch world famous in the 18th and 19th Century. Whilst in Amwlch, why not also pay a visit to the Sail Loft, an exhibition charting the development of the Amwlch port to support the Copper industry, not to mention a unique café/bistro to take on a few refreshments.
If Art and Culture interest you, then take a trip to Oriel Ynys Mons, in Llangefni, this museum and gallery showcases the best of Anglesey's art, history, culture and wildlife. The exhibitions change frequently through out the year and there are regular workshops especially for children.
A tour of the former ancestral home of the Marquess of Anglesey, now owned and run by the National Trust Mansion, Plas Newydd is also a fascinating way to while away a few hours, hopefully the rain will pass over and you will be able to take in the spectacular views over the Menia Straits and Snowdonia as you wonder through the grounds.
If you fancy trying something a little further a field a tour of the Electric Mountain, in Llanberis provides a fascinating insight into the potential of hydro-electric power , whilst the slate mine caverns at Blaenau Ffestiniog have been amazingly transformed to an indoor "trampoline" experience like no other in Bounce Below.