The step right before this is very close to a minecart system which can also go directly to the Wintertodt camp.
Talk to Martin Holt again in the Settlement Ruins south west of the Wintertodt camp.
Be prepared to fight a level 132 assassin who uses a dragon dagger and dragon darts
The step right before this is very close to a minecart system which can also go directly to the Wintertodt camp.
https://github.com/Zoinkwiz/quest-helper/blob/204fae43261d0337d50675ecb0b2160b24fa9b09/src/main/java/com/questhelper/helpers/quests/akingdomdivided/AKingdomDivided.java#L637