You can purchase this for 1 Seafarer's Dubloon, but they are however unique at 5 so you can only keep 5 in your bag at one time.
They are BoA so you can send a bunch to an alt to keep in the mailbox and you can keep using it any week, even though it's not being sold by the vendor that specific week.
This item makes doing the island expeditions a breeze and I recommend everyone to take advantage of this right now, or at least do it the next time it shows up at the vendor.
This item makes doing the island expeditions a breeze and I recommend everyone to take advantage of this right now, or at least do it the next time it shows up at the vendor.