As both these kinds gents have mentioned above...
I just make a selection, Hit SHIFT+L then hit SHIFT+G.
This should create the loop then take you to the beginning of the loop.
You can also use the CTRL+ PAGE UP/PAGE DOWN shortcut to navigate one measure at a time.
This is not very commonly known (at least I don't hear too many talk about it much) but it is very helpful in navigating.
A few years back, I printed 10 pages of shortcuts out, now I know 90% of them by memory.
Shortcuts are mans best friend.