Start A Game, In Campaign, On Normal Difficulty.
- I Tried It On Hard And Endless Mode, And The Fatigue Meter Drops Too Fast To Accomplish This With The Starting Boat (Confirmed By Deathtroth At 8.8 Miles)
You Can Spend As Much Time As You Want In The Inital Area, But Soon As You Get On The Raft - Your Hunger, Thirst, And Fatigue Meters Start Dropping.
Go At Least 10.0 Miles, And Then Land Somewhere.
- 10 Miles Then Crashing Does Not Count.
- Loading A Checkpoint After Death And Then Finishing The 10 Miles, Counts. (Confirmed By Deathtroth)
Achievement Pops, After 10 Miles, When You Get Off Your Boat At Any Landing.
Good Luck!