[Why does SL keep randomly teleporting me to somewhere else?]

I came on SL today, to find myself in a place I've never previously been before,
and whilst I was exploring somewhere else, I kept being teleported back to this random place.
Sometimes, my chosen teleportation doesn't even finish loading, before it take me back to the odd island.
A couple of times, it did teleport me somewhere a little different.
But all the places were info hubs.

Castle Valeria
Hyles Swamp
Camp Kawabata