Mountain Bike1 of 11
Photo/Richard Masoner, Flickr
Go off road! Mountain biking is a great way to have fun on the bike while also improving your bike-handling skills.
Costumed Ride2 of 11
Tweed rides, l'eroica rides and other themed bike rides can be a lot of fun. If there's not a costumed ride in your city, start one yourself.
Ride a Gran Fondo3 of 11
A gran fondo—or "big ride"—is a great way to have fun on the bike with friends. Expect well-stocked rest stops and mechanical support.
Take a Hike4 of 11
Photo/Javier Alvarez, Flickr
You'll strengthen muscles you don't normally use when running, as well as improve balance and footwork.
Bonus: if you're a dog owner, hiking is the perfect time to bring along your four-legged friend.
Enter A Fun Run5 of 11
Photo/Aberdeen Proving Ground, Flickr
Try a color run, an obstacle race or any non-traditional competition to break up your routine and give yourself a fresh perspective.
Rowing6 of 11
Photo/Vesper Boat Club, Flickr
If you have access to a rowing ergometer, it's is a great cross-training option. Few sports are as physically challenging as rowing.
Tip: Rowing is a complex motion, so to prevent injury, make sure to get proper instruction on form and use of the erg.
Group Fitness7 of 11
Photo/Gina Tomain, November Project
If there's a November Project meetup in your area, it's is a great way to stay fit alongside like-minded individuals. Bootcamps and CrossFit boxes are common too and can be another good option.
SUP8 of 11
Photo/Mike Baird, Flickr
Standup paddling challenges your balance, trains muscles that aren't normally used during tri training and helps you maintain general fitness. Plus, it's fun trying something completely new.
Yoga9 of 11
Photo/Gothia Towers, Flickr
Yoga helps you improve flexibility and strengthen muscles neglected during in-season training.
Strength Training10 of 11
Maintaining muscle mass, injury prevention and building muscular endurance are just a few reasons to hit the gym—especially if it's the area of tri training you often "forgot" during the season.