does climbing give you big forearms?

Climbing can indeed contribute to developing stronger and more defined forearms. The sport involves utilizing your grip strength extensively, which places a significant demand on the muscles in your forearms. As you climb, you engage the flexor muscles in your forearms, which are responsible for gripping and pulling.

Over time, consistent climbing and challenging yourself on various routes can lead to increased forearm strength and muscle development. This can result in more prominent and toned forearms.

It's worth noting that the extent of forearm development can vary depending on factors such as climbing frequency, intensity, duration, and individual genetics. Not all climbers will develop large forearms, and the degree of muscle growth will differ from person to person.