Sometimes all you need is a blanket, a leafy tree casting some delicious shade, and a few minutes to contemplate life's great mysteries while munching on a bologna-and-cheese sandwich. That may sound like a simple enough demand, but with all the sweating crowds, echoing traffic, and endless uhntz-uhntz madness that defines Miami, finding some peace and quiet in the Magic City can be a daunting task. But there's a lush green oasis right in the middle of it all. In fact, it's the first county park in the 305: Matheson Hammock. In 1930, industrialist William J. Matheson handed 85 acres of tropical hammock to the county and asked it to create a botanical garden. Four years later, the county bought a huge adjacent stretch of land to create more than 500 acres of oasis on the waterfront. Today you can find all of your picnic essentials, from massive banyan trees to pavilions and the occasional squirrel. There's even a manmade atoll pool that empties and fills with the tides. There's plenty of grass to pitch a picnic lunch, but there's also a sandy beach with views of the downtown Miami skyline.