Yooohooo!! Pretty box made it to australia and close to Perth as well :-) We were planning to put it in a cache in Perth, but it didn't work out (1 cache was a virtual, one we couldn't find, one was temporarily available...) Because Rottnest is not to far from Perth we decided to drop it there. Tomorrow morning we will be travelling up north along the coast, so that would be further away.
I hope your relatives will be able to go to the cache (we had a wonderful day cycling around the island!) or wait untill someone takes the TB to a cache in Perth!