| Term | Definition |
| el tiburón | the shark |
| la ballena | the whale |
| el delfín | the dolphin |
| la foca | the seal |
| la morsa, el elefante marino | the walrus |
| el pez (los peces) | the fish |
| el pulpo | the octopus |
| la nutria | the sea otter |
| la aleta | the fin |
| el arrecife coral | the coral reef |
| la burbuja | the bubble |
| bucear, el buceador | to scuba/skin dive, the diver |
| la ola, el oleaje | the wave, the surf |
| la estrella del mar | the star fish |
| la medusa | the jelly fish |
| la langosta | the lobster |
| el erizo marino | the sea urchin |
| el hipocampo, el caballito del mar | the sea horse |
| el camarón | the shrimp |
| el calamar | the squid |
| el cangrejo | the crab |
| la almeja | the clam |
| la concha | the (sea)shell |
| el alga marina | the seaweed |
| el castillo de arena | the sand castle |
| el cubo, el cubito | the pail |
| el parasol | the umbrella |
| la loción(crema) para broncearse, el protector, protectante solar | the suntan lotion, the sun screen |
| el muelle | the pier |
| el malecón | the dock or walkway near water or beach |
| el salvavidas (el vigilante) | the lifeguard, life jacket |
| ahogarse | to drown |
| ¡Socorro! | Help! |
| la plancha, la tabla de surf/de surfear | the surfboard |
| la pala (la paleta) | the shovel (the little shovel) |