Celticos (a local company providing custom guided tours of Wales)
Alton Towers D.I.Y. Trip (Resort and Theme Park)
Beaches D.I.Y Trip
Castles D.I.Y. Trip
Chester Races (Horseracing)
Chester Zoo
Conwy Castle & Conwy Feast 2016 D.I.Y. Trip
Conwy Town / Smallest House In Great Britain / Conwy Castle
Ffestiniog and Welsh Highland Railway (Old-fashioned steam trains)
Foel Farm Park (A real working farm)
Football/Rugby D.I.Y. TRIP
GreenWood Forest Park (Outdoor family fun and local crafts) Printable leaflet
Llanberis D.I.Y.Trip
Llynnon Windmill, Llanddeusant (a real working windmill)
Llechwedd Slate Mine Printable leaflet
Plas Newydd Country House & Gardens
Portmeirion (Italian-style tourist village)
Snowdon D.I.Y.Trip (Highest mountain in Wales and England)
South Stack Cliffs and Bird Reserve
Spa Days D.I.Y. Trip
Trac Môn (Motorsport racetrack)
Welsh Mountain Zo o (Colwyn Bay)
Zipworld - Experience Adventure (Zipwires and underground trampolines!)
Local Events and Festivals (please check event website for exact dates)
Anglesey Show (August)
Bangor Carnival (June)
Conwy Feast (late October)
The Great Strait Raft Run (June)
Royal Welsh (Agricultural) Show, Mid-Wales (July)
More things to do
Art / Galleries:
Anglesey Arts Weeks
Gwynedd Museum & Art Gallery (Bangor)
Mostyn Oriel (Llandudno)
Oriel Ynys Môn (Llangefni)
Boat trips:
Beaumaris Caernarfon, Menai Bridge & Felinheli
Cinema & Theatre:
Pontio (Bangor)
Cineworld (Llanduno Junction)
Galeri (Caernarfon)
Occasional Cinema (Bangor and Brynrefail)
Theatre Colwyn (Colwyn Bay)
Ucheldre Centre (Holyhead)
Venue Cymru (Llandudno)
Indoor Climbing - A popular North Wales activity:
Beacon Indoor Climbing Centre (Caernarfon)
Nature/Wildlife:
Moel-Y-Ci
National Trust
RSPB
Wildlife Trust
Outdoor Activities:
Plas Menai (Felinheli)
Plas Y Brenin (Capel Curig)
Glasfryn Park (Pwllheli)
Surf-Lines (Llanberis)
Swimming & Leisure Centres:
Various, North Wales
Ladies Only Swimming, Llandudno, Tuesdays 7.30pm - 9pm (correct 9/2/16)
For more ideas...