Renowned for its diverse offerings, the recently disclosed blueprints for the last segment of The Underline depict an array of captivating amenities. Expect an exquisite artisan market, a canine-friendly area featuring an agility course, outdoor pickleball, a skate park, half-court basketball, a miniature soccer field, a delightful tropical garden playground, self-sustaining micro-forests, elevated walkways adorning botanical rainwater ponds, and an abundance of beautiful public art will be seamlessly integrated throughout this $140 million urban trail and linear park, spanning a verdant expanse of 10 miles beneath the elevated Metrorail tracks, extending from the Miami River to the final stop of the Dadeland South station.

Here is an article that goes into it in full detail.

(source: miamiherald.com, render: James Corner Field Operations Miami-Dade County Department of Transportation and Public Works and Friends of The Underline)