They agreed to make ships to go to Tarshish, and these were built in Ezion-geber.

Numbers 33:35
They set out from Abronah and camped at Ezion-geber.

1 Kings 10:22
For the king had the ships of Tarshish at sea with Hiram's fleet, and once every three years the ships of Tarshish would arrive bearing gold, silver, ivory, apes, and peacocks.

1 Kings 22:48
Jehoshaphat built ships of Tarshish to go to Ophir for gold, but they never set sail, because they were wrecked at Ezion-geber.

2 Chronicles 9:21
For the king had the ships of Tarshish that went with Hiram's servants, and once every three years the ships of Tarshish would arrive bearing gold, silver, ivory, apes, and peacocks.

2 Chronicles 20:37
Then Eliezer son of Dodavahu of Mareshah prophesied against Jehoshaphat, saying, "Because you have allied yourself with Ahaziah, the LORD has destroyed your works." So the ships were wrecked and were unable to sail to Tarshish.

And he joined himself with him to make ships to go to Tarshish: and they made the ships in Eziongaber.