Bigger calves

Have good insertions and small ankles

use the leg press machine
do one foot at a time (so you can use the other leg to help get the weight up and stabilize the movements)
put your working foot on the bottom edge of the platform so that your heel can go past the platform a bit (more range of motiom)
practice putting your working foot in a position where you're stretching your calf and then from there move the weight
now do drop sets

so start with your 2rep max for one calf, do 2 reps, drop the weight down 10lbs do as many reps as you can, drop the weight 10lbs again do as many reps as you can. keep doing this until you can do 7 reps then stop dropping the weight down. make sure there are as few seconds as possible when you're resetting to drop the weight down 10lbs you want your calf to recruit muscle fibers that it didn't use in the beginning of the set. if you allow those used muscle fibers to rest then your calf won't recruit the unused fibers. this recruitment is what drives hypertrophy.
NOW REPEAT THE WHOLE PROCESS FOR 3 TOTAL DROP SETS FOR EACH FOOT.

Put on 200 pounds of extra weights and power walk a few miles at a time.

at least u hot

Hike

Get zero drop shoes
Run

Alternatively run barefoot.

Do they have something like socks but with a tough and super flexible heel?

Go hiking with backpack

Un-ironically bulk to 130kg (dirty), your calves will BLOW THE FUCK UP

You gotta get really fucking fat. Then do 100 calve raises by the hour. After that, you gotta lose all your fat.

Its a known fact and a trade secret that all guys with big calves were once really fat.