Anglesey is reachable by train and car from the mainland of Wales, as well as by high speed ferry from Dublin.
While there is a skeleton bus service, this is not regular (most services are hourly at best, and nonexistent on Sunday or in the evenings), and has a reputation as unreliable. Partly as a result of this there are many local taxi services.
Beaumaris Castle - Tel: +44 1248 810361. This is a 13th century castle of great interest to many, situated in a quaint untouched town on the Isle of Anglessey. Part of the ring of Stone built by Edward I of England, after he invaded Wales. Currently part of the Castles of King Edward I UNESCO World Heritage Site. A nice day out, but be careful as it's often difficult to find travel back to the mainland in the evening. Entrance is £3.
Hundreds of butterflies set in a lovely environment. Tropical environments are home to butterflies some as large as six inches across the wing. Visitors are invited to sit, relax, take photographs, or explore as butterflies fly around them.
Anglesey Sea Zoo - Brynsiencyn, Isle of Anglesey (Ynys Môn) - LL61 6TQ - Tel: 01248 430411 - firstname.lastname@example.org - £5.95 on a low season (£4.95 children)
An exhibition of living sealife from around the coast of Anglesey, providing a fantastic look at the local aquatic habitat. Tropical displays show Piranhas and Seahorses, and the visit can be educational or just fun.
Anglesey Circuit not only hosts spectacular car and motor cycle racing, but also a varied programme of other motor sport disciplines, particularly noteworthy is the British Rallycross Championship event, plus SuperMoto, Stage Rallies and Car Sprints. The circuit has also become an important test and track day facility for many top racing organisations, including British Formula 3 teams and many of the leading track day organisers.
Stone Science, near Pentraeth - a journey through 650 million years.