Lands in red are Traveller's Diary lands, do these first.
Secret Hall
Secret Hall is accessed through the cave entrance on Storm Canyon
Spirit World
Spirit World is accessed through the Gate at Secret Hall
Chilkoot & the Mine
Unlocks at level 61. Once you have completed all the quests at Machaon Chilkoot will unlock.
Chilkoot is a strange timed land! Once you enter the Mine at Chilkoot and find and talk to the NPC a timer will begin. You will then have 3 Months to finish Chilkoot and the Mine.