Knowledge (Navigation}

Key Ability: Intelligence

Use this skill to guide an ocean-going vessel from one port to the next with the aid of instrumentation, charts, the stars, and coastal landmarks.

Rank 1 Ability

A successful skill check keeps your ship on course for one day. A character can make one Knowledge (navigation) skill check per vessel per day.

Base DC: 5 (modified by the chart below)

DC Modifier Condition
+0 Clear weather, sailing along a familiar coastline
+3 Clear weather, sailing in familiar waters among islands
+7 Overcast weather (sun or stars occasionally visible), sailing in familiar waters among islands
+10 Clear weather, sailing in unfamiliar waters near islands
+13 Clear weather, heading across open sea
+17 Overcast weather (sun or stars occasionally visible), heading across open seas
+20 Stormy weather (sun or stars never visible), heading across open seas
+25 Violent, stormy weather with no stars or landmasses visible

Success: Your ship stays on course for one day.

Failure: A failed check adds 10% to the total required travel time, rounded up to the nearest hour. Additionally, each failed check on a given voyage adds +2 to the DC of the next check. If the DC for this check becomes impossible for everyone on board, the ship is said to be hopelessly
lost. They have no chance of reaching their desired destination, and their fate is literally in the GM’s hands.

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