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What is this?

bumpy

Jetboaters Lieutenant
Messages
212
Reaction score
155
Points
157
Location
Ashburnham, MA 01430
Boat Make
Cobalt
Year
2020
Boat Model
Other
Boat Length
23
I've been seeing this on the tie out posts and dock uprights; now its on my outboard and hull. We're in north central Mass. I've been on the lake since 61; I've never seen this before. Can anyone tell me what it is? Aliens?IMG_2453.jpgIMG_2454.jpgIMG_2452.jpg
 
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