What setting is this defect caused by?
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The lines along the length of the boat also appear to be wobbling, can you confirm this? Have you used this material before? The layers should look straight and equal. <a href=enter image description here">

I have 2 candidates: If the lines indeed wobble it may be over extrusion. The excess material pushing the extruded line over the edge. (check the diameter of the filament with a caliper and adjust the extrusion rate if needed)

Or it can be shrinking. 60% infill is quite high. You could try 20 or 30% (less material and more air => less distortion), or adjusting cooling.

Hope it helps, good luck!