There aren't many trees here and those that you do see are strictly palms. Oops, it's a lighthouse. In short, they serve to fully provide the good workout for your short game that this course should be. Many of the greens are ridged and rounded. Which of course serves to maximize the difficulty of chipping and putting.
Some greens are almost too challenging.
The 11th green is so dome-like that you'd almost think there's an elephant buried under it. To be totally honest, this course is not by any means an architectural masterpiece. I know it's one of the designer's first few efforts, and it contains blatant errors. Notably a lack of adequate smoothing, and objects being misplaced. But this is a Par 3 course, mainly built for practice, not reg play.