"Cabo Submarine Children big and small love Cabo Expeditions’ bright-yellow Cabo Submarine , a 60-foot semi-submersible vessel that departs from the Marina Cabo San Lucas and navigates the Cabo San Lucas Bay, providing patrons with dazzling underwater views of colorful sea life and sandfalls (a phenomenon in which sand cascades down an underwater slope like a waterfall). Enjoy Cabo’s most iconic sights—the arch, Lover’s Beach, Pelican Rock, and more—from the spacious above-water level, then head belowdecks, where thick plexiglass windows look out at sea lions, parrot fish, and near-neon triggerfish. A handy laminated guide helps in identifying the different species, and you can also turn to the Cabo Expeditions tour guide, who is trained in marine biology."