Mae Ger a'i ffrindiau'n ceisio gwneud arolwg natur ond yn rhyfedd ddigon, does dim byd i'w weld. Ger and his friends are trying to do a nature survey but strangely, there's nothing to see.
5 wythnos ar 么l i wylio
11 o funudau
Gweld holl benodau Ger a Gu
