Take a Fix

Bearing from a buoy? No
Bearing from a beacon? Yes
Range from a beach? No
Range from a cliff? Yes
Angle between two trees? No
Angle between two points? Yes
Elevation of the rooftop? No
Elevation of the sun? Yes
Criss cross forming a triangle? No
Criss cross at a point? Yes
Time elapsed exceeding 3min? No
Time elapsed within 1min? Yes

Take a fix...