We’ve charted the stars more thoroughly than the sea. And that’s not an exaggeration—we actually have better maps of Mars than we do of most of Earth’s seafloor. Which is pretty wild, considering water covers 70% of our planet.

That means every trip to the coast holds the chance to discover something new. And these curious ocean-goers did just that, stumbling upon everything from eerie underwater statues to creatures that look straight out of a sci-fi movie.

Scroll down to explore their fascinating finds—you might be surprised by what’s been hiding beneath the surface.

#1 Apollo 11 Engines, Recovered By Bezos Expeditions

Image credits: jurvetson

#2 Christ Of The Abyss, Key Largo, Florida

Image credits: Sebastian Carlosena

#3 Ocean Atlas Is The World’s Largest Underwater Statue. Located In The Bahamas

Image credits: Sayvewuner

#4 Underwater Sculptures At Molinere Underwater Sculpture Park

Image credits: kasio69

#5 New Species (Porifera) From The Deep South Atlantic And North Pacific

Image credits: Castello-Branco C

#6 Found This Weird Statue Buried In The Water Off The Coast Of Queens

Image credits: AdMost7825

#7 Found By The Ocean

Image credits: Ohhhnothing

#8 Just Seeing Two People Stand On The Ocean Floor Is Strangely Unsettling

Image credits: j3ffr33d0m

#9 Washed Up Whale Spine

Image credits: evercurious13

#10 Unidentified Golden Orb Found In Gulf Of Alaska

Image credits: OAA Ocean Exploration

#11 This Fruit I Found It In The Ocean Of Cancun Mexico It Is Similar In Texture And Color To A Coconut But Is Much Smaller The Inside Smells Like A Citrusy Coconut

Image credits: Any_Inevitable1025

#12 I Think I Found The Tiniest Heart Of The Ocean. It’s Even Too Tiny For Doll Rose

Image credits: dlennsu

#13 Real Talk I Think I Just Found A Shell With An Ancient Language On It

Image credits: DaaaBears

#14 This Thing Exists. Robust Armored Gurnard Satyrichthys Welchi Is A Strange Looking Fish

Image credits: 67rtyu53

#15 Found Several Of These In The Ocean Off Moorea, French Polynesia

It’s feels like plastic and the blue is sparkly, only on one side.

Image credits: Street-Letterhead-41

#16 Strange Lights In The South Pacific Ocean

Image credits: whatsthis1005

#17 Sigillina Cyanea, These Are Strange Creatures To 15 Cm Long

Image credits: jeans_Photos

#18 Wreck Of The Rms Rhone, British Virgin Islands

Image credits: Gareth Richards

#19 Weird Sea Creature

Image credits: Samjay03

#20 Mariana-Trench, Deepest Oceanic Trench On Earth, Around 2,550 Km (1,580 Mi) In Length And 69 Km (43 Mi) In Width

Image credits: 1840489pavan nd

#21 Ancient “Computer” Found Near Antikythera Island 1901, The Mechanism Consists Of A Complex System Of 30 Wheels And Plates With Inscriptions Relating To Signs Of The Zodiac, Months, Eclipses And Pan-Hellenic Games

Image credits: Marsyas

#22 Purple Anemone Next To What Appears To Be An Eye Of A Super-Camouflaged Fish. Or Perhaps Just Some Weird Reflective Property Of A Rock

Image credits: NOAA Photo Library

#23 Locomotive Graveyard, New Jersey

Image credits: imgur.com

#24 Huge Japanese Spider Crab

Image credits: wechonki360

#25 Weird Ocean Creature My GF Found On The Beach In Santa Cruz, Ca

Image credits: dmt7679

#26 Dug Out Carcass Of The St. Augustine Monster, 1896

Image credits: Mgiganteus

#27 The Ribs Of A Once Mighty Ship Bare On The “Graveyard Of The Atlantic.” North Carolina, Outer Banks. 1973

Image credits: NOAA Photo Library

#28 Today I Found A Rock At Ocean Grove Beach That Looked Like A Sandwich

Image credits: ellieck

#29 Biggest Megalodon Fossil I Have Found. Found While Diving Off The Coast Of N.c

Image credits: treadup

#30 Weird Ocean Blob Found In Puerto Rico

Image credits: theladysupernova