Underwater Treasure Riddles for Ocean Explorers

I rest on the seabed with rusty anchors. What am I?

I am sealed tight and draped in kelp. What am I?

I shimmer in a trail divers follow. What am I?

I form tunnels where coral grows. What am I?

I am a ridged map carved in the seafloor. What am I?

I bubble with coded clues underwater. What am I?

I glow in the dark and drifts near treasure. What am I?

I open only when the tide is low. What am I?

I hold a pocket of air beneath a reef. What am I?

I point divers toward north. What am I?

I guard the reef with toothy patience. What am I?

I carry a scroll sealed in glass. What am I?

I am a crown-stamped silver coin. What am I?

I map hidden shapes with echoes. What am I?

I am the final smooth glint in the shell. What am I?

We're flat rubber paddles on your feet that kick you through the water. What are we?

I keep eyes clear underwater, with a strap and a glass front. What am I?

I am the rope tied to a buoy above treasure. What am I?

I am the map with X under the waves. What am I?

I am the anchor half buried in sand. What am I?

I scuttle sideways guarding shiny loot. What am I?

I am the bubble trail from a diver. What am I?

I am the reef wall painted with fish. What am I?

I am the waterproof lamp in a cave. What am I?

I am the sandy place where coins hide. What am I?

I'm a green, rusted dinger from a sunken ship that once warned of fog. What am I?

I am the compass clue in pirate stories. What am I?

I turn a swim into a mystery quest. What am I?

I'm a pirate's guide to buried gold with an X marking the spot. What am I?

I open a locked chest and hide inside a seashell. What am I?