Playa Lagun is at the South end of Lagun.  It's more of a family beach, but still with world-class diving only a few minutes out. Snorkelling: nice in the bay, with cliffs and rocks overgrown with coral and sponges.
Sometimes there are turtles swimming in the bay.
The drop-off start approx. 150-200 m from the beach, at a depth of 10 m. Slope 45 degrees outward, till a depth of 30 m, afterwards steeper.
Beautiful coral, growing in mushroom shapes, lots of sea-life.

South end of Lagun. Good parking facilities at the beach, from where you can enter the water. Swim out the bay to reach the drop-off (appr. 200 m).

Northwest of Willemstad, travel 12.3 km West on Weg Naar Westpunt from the Weg Naar Hato intersection to San Pedro.  Turn left to head toward Soto.  Travel 15 km to reach the intersection shown below in the village of Lagun.

Playa Lagun

I only snorkeled this site. This is the best site I found on Curacao for snorkeling, going along the sidewalls and around the sea cliff. Here, as elsewhere, the reef starts out and down too far to snorkel [semi-exception of Playa Kalki].

JKeenan's Dive Log

@jkeenan

1 dives