Nice shark bite;-) Good that the shark didn’t get other parts of your body!
But seriously: to continue with PT and get some deep massage and fascial treatment is a good idea. A good PT can also show you how you can massage the calf yourself.
How is the mobility now? If it’s still limited keep working on that. But you can make everything more functional. Also the strength training. Calf raises. Lots of ankle stability/balance work. Good that you had a decent climbing season. Climbing is also one of the best exercises you can do for the calf.
There is also the option of getting an injection in and around the scar tissue. Do you have an orthopedic doc? There are different things that can be used. But talk to an orthopedic doc, to figure out the best option. If you are interested…
hope that helps?!
Keep climbing and be aware of the sharks!