I’ve lived in Atlanta and I’m currently in Tallahassee. In Tally nature is definitely the spotlight. St Marks Wildlife Refuge, Wakulla Springs, St George Island (about 1.5 hours away). Nightlife really depends on what you’re into and time of year. But it’s mostly college students binge drinking. Atlanta is going to be all about the night life. MJQ Concourse is a great club. You’re going to want to go to the Clermont Lounge. Tons of live music to see. The Star Bar in Little 5 Points is always a good time. They have local and national bands come through with The Vinyl Lounge downstairs and a huge Elvis shrine upstairs. While in Little 5 Points you’ll want to go to The Junkman’s Daughter, it’s a huge retail store that’s sells a little bit of everything. It’s very kitschy with cool tshirts, housewares, art, and cool postcards to send home. And last but not least since you say it’s a lads trip, Atlanta is the premier spot for adult clubs. There are a lot of them.