Ran across this amazing website detailing tons of no equipment workouts. http://neilarey.com/workouts.html
I especially like the 30 day challenges. I just finished the 50 pushup one. Gonna start the new December one called “Ottermode“.
I like bodyweight exercise as they promote lean muscle over bulky which is better for triathlon training. The lower weight promotes the high reps you need for muscular endurance (as opposed to just power from low rep high weight workouts)