If you are on optional pvp or you are just not scared to be pked I would reccomend you:
Demons yalahar, there are stairs. for 130 lvl + with demon task ED MS RP
Minotaurs on Oramond for 50-150 level RP ED MS
Oramond West have safe Zone at west gate, for 150 lvl ED MS
Oramond Glooth Factory for 200 lvl EK RP you have there stairs at enterance to that place.
Talahu isle for hydra task for 130 level EK MS RP ED
Malada isle for Giant spider task for level 80 EK MS RP ED
Ramoa isle for Bonebeast task for level 50 EK MS RP ED
Liberty bay Wyrms under moutain and on moutain easy way to stairs. 50 level ED MS RP EK
Zao Muggy plains for 80 level RP MS ED with Lizard Task
Zao Lizard Chosens at Muggy plains where every room have stairs. 80 level ED MS RP
Plains of Havoc for Giant spider task on 80 level for ED MS RP EK safe spot on Temple
Yalahar cemetery quarter and Grim Reapers easy way to exani hur Up on building. 80 RP 130 MS
As teamhunt Nightmare Isle easy way to stairs.
Lower roshammul or bridge for 130 level RP
Remember you can set mark on stairs on minimap and If you click on it your character will enter spot and went up or down to your safe zone.