Thread watched Gel coat superficial scratches -not too deep Not too shallow

[circa1971la]

Hi I have a dark blue gel coat on my sailboat. The inflatable dinghy tied up alongside left scratches. They are too deep to remove with rubbing compound but seem to superficial still to have to do a major Gelcoat repair I’m not handy with this stuff but is wet sanding alone an option? Scared to do this and really appreciate any suggestions ..