Tugboat, Best Snorkel Spot In Curacao
I think Tugboat is the best snorkel spot in Curacao. I was there the first week in December, 2015.
It is very hard to find as the roads are poorly if at all marked. Your directions however were spot on; I would not have been able to find it without those.
The tugboat was nice but around the point to the left (if you are facing the water) was abundantly healthy corals hard and soft and a wide variety of fish and critters; very healthy reef. Just keep swimming to the left around the cliffs. The current was very mild going left to right back toward the tugboat so you expend your energy swimming out and basically drift back which is nice. Saw a school of rainbow runners that I had never seen before.
Highly recommend this snorkel, as it was definitely the best on the island.
I got there about noon. The restaurant was open, and bathrooms. There were other people around so no fear of car break in.
Thought about going back to do it at night, but didn't think I could find my way back in the dark.