“Lit up some agates we found on the beach with a flashlight and took macro photos.”
"Crab pot lines are eroding the ledge of this pier."
“These sea snails are holding each other up.”
"This seaside bus stop getting devoured by sand dunes in South Africa."
“Found these porcelain pieces on a beach”
“My wife found sea glass with baby Yoda.”
“Found this piece of wood washed up on a beach in South Carolina that looks like a bird.”
"Heart-shaped rock with coral arteries found at the beach"
"An ancient sardine tin, recaptured by the sea"
"This colony of sea-life on a shoe"
"A crab decided to live in a bottle cap."
“This table I saw by the beach has been engulfed by sand.”
"A starfish walking across the sand"
“This little piece of rock I found on the beach looks like Jupiter.”
“My girlfriend found this happy rock on the beach. It now watches us do the washing and reminds us to be happy.”
“Found a 14k gold diamond sapphire earring on the beach with the help of a metal detector. Got very excited about it.”
“My wife found it on a beach. It has a screw cap and contains bright green liquid inside.”
"Someone built a dino into the rocks when they were building on the beach."
“Found this beautiful shell at a beach”
Probably Fluorescein Marker Dye
Could as well be the inside capsule of a Fosgen/Lost grenade. They wash ashore pretty commonly at my place because the ammo was thrown into the sea by the bulk.
Very dangerous btw.
There is a Reddit thread about this.
reddit.com/r/whatisthisthing/comments/11zl3xs/found_on_charmouth_beach_dorset_sc
rew_cap_and_has/
The second photo shows a dye like tube.