Terry James Walker Llys yr Adar, Gallt y Foel, Caernarfon, Gwynedd, LL55 3EF Retail Mobile Number Mobile Number icon for Snowdonia retail page 07919 484209 Retail Email Email icon for Snowdonia retail page email@terryjameswalker.com Retail Screen Screen icon for Snowdonia retail page https://terryjameswalker.wordpress.com/ Mae Terry James Walker yn cynnig cyrsiau dringo creigiau wedi'u lleoli allan o Lanberis, yng nghanol mynyddoedd Eryri.