Honolulu is one of the largest cities in the entire Pacific, so it's surprising that there are five somewhat expansive botanical within the city limits. The Foster Botanical Garden is the oldest of these lush areas, and offers visitors a picturesque haven to view tropical plant life. They have a huge collection of thriving flora here, that provides hours of entertainment for anyone with an appreciation for nature. If an hour or so sounds like a good start, but you are still raring to explore more gardens, there are two other expansive gardens directly adjacent to Foster's. To the north is Lili'uokalanai garden, and to the east is Queen Emma Gardens. If you are looking for a scenic place to escape the hustle and bustle of downtown Honolulu, Foster Botanical Garden, and the surrounding facilities are the place to be.