Mae cefnder Twm Twrch o Awstralia wedi cyrraedd ac yn barod i fynd ar antur fawr. Twm Twrch's cousin from Australia, Cynog Cyhyrog, has arrived and is ready to go on a dangerous adventure.
13 o ddyddiau ar ôl i wylio
12 o funudau
Gweld holl benodau Twm Twrch
