u/The_Nightbusker

A newbie here. I think I've missed something terribly obvious, but when I end a move on a Sea Line portal, nothing happens. No options, no menu, nothing. The description says that any lord or hero can use it. Should I discover the other end of the line first?

https://preview.redd.it/cddq663t0byg1.png?width=1440&format=png&auto=webp&s=53acc63ca44554a3e37fdfb8b23545d33acc4d0b