Here is the full list of all 12 Legendary Journeys achievements.
Leave Nerah's Landing
Take a Coach to a town
Complete the game with 0 lost and 0 escape battles
Visit All Zones
Complete the game
Lay Rethguard to rest
Accumulate 1,000,000 gold
Kill 50 rats
Travel by boat
Reach level 60 on all party members
Lay Tormaz to rest
Help Valeria dole out revenge