The first location I visited is high over Caledon Prime. Every Friday night, Duke AV Parabola and crew host Primtionary, a game where players build "clues" to the titles of books, movies, events, etc. (Think charades but with prims instead of gestures.)
Primtionary over Caledon Prime
Caledon Quest Starting Area at the Hall of Caledon
Not far from the Oxbridge campus, in Oxbridge Village, the Oxbridge Fencing Club caters to those who want to hone their swashbuckling skills. Using the En Garde gaming system, mentors and champions help beginners learn the finer skills of the game while working their way up the ranks in the En Garde system. The Club also has an in-world group to arrange tourneys and team activities.
Inside the Oxbridge Fencing Club
You'll need firepower more than sword skills in the skies below Middlesea's Iron Cloud. Kraken hunting has become infamous in the sim. Kill enough kraken and your name will appear on the leader board in the Iron Cloud lobby. (The sim has avatar flight turned off, so vehicle flight is required--may want to bring a partner to navigate the skies while you blast a few tentacled critters from the aethers.)
Kraken Lurking below the Iron Cloud Airbase
(photo taken by Wrath Constantine)
Finally, for those who prefer a more leisurely pursuit, full of pets and prizes, there are multiple locations in Caledon that offer 7Seas Fishing. To catch best fish and custom prizes, you'll need a pro rod and bait--these are usually available at vendors at the fishing sites. I have fishing set up in both Caledon Sound and Caledon Speirling at Tempest's Point. Kitiwickshire Fishing Supply is also listed on the 7Seas website as having customs (in this case, a Jaeger Duck!), but there are many unlisted locations--just wander around and you'll probably find some fishing holes.
A Wee Pink Jaguar Fishes from the Tempest's Point Dock.