West Continents - Mistone, Rilara
West Islands - Barbarian Islands, Dragon Islands
Central Continents - Dregar
Central Islands - The Islands of Roldem (pretty sure that's it)
East Continents - Voltrex, Xantril (Don't recall there being any islands, can't remember)
West is generally suited for a well classed party of levels 1-10
Central is the same but normally for levels 11-19
East is the same only now it's suicide unless you're with a well classed group of level 20+
Now that's not to say a group of level 8s can't go anywhere on Central, just that if they try to explore off the roads a whole lot, or journey too far into the wilderness their chances of survival is lessened. I've seen levels 7-9 do awsome on Central, just need to play it smart be well classed (Ie: Clerics, Wizards, Fighters, and maybe a Rogue) and be well organized. That being said a level 9-10 rogue, with 18-20 skill points in hide/move silently can explore tons of places on all servers if they're smart. ZV-