Hull Slap sound effects, 2 libraries in all. They are filed under Boats & Ships, and they all come from one publisher, each card showing its formats and sample rates.
Elko Marine Big Foot Ultimate sound effects covering 24 files of outboard driving at slow, medium and fast speeds, pass-bys, reverse, U-turns, revs and start-idle-shutdown cycles at 192 kHz.
Yamaha WaveRunner EX Sport sound effects covering 53 files of dual-perspective engine and exhaust driving, revving, pass-bys, U-turns, and onboard foley recorded at 192 kHz / 32-bit float.
Flevowerf Waterland 700 sound effects capturing engine and cabin perspectives across slow, medium, and fast driving, reverse, U-turns, revving, pass-bys, plus ignition keys, gearshift, ventilation, water pump, and windscreen wiper foley.