If you go straight down this road, there’s a park.
I was playing with sand at a public park and it turned my hands as black as coal.
"So, how was the park you and Fugu went to?" "That was actually the most enjoyable park we’ve ever been to."
A public park is a park that is public. It's a public park.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.