Because Salamis was a sea battle, and the Greek side woulld be at a bit of a disadvantage without ships.
Triremes, same as the Greeks
By ship.
Because that was there main route of Transportation. And it help them discover more lands.
535 bc
Artemesia, queen of Halicaarnassos in Asia Minor who commanded the city's contingent of the Persian navy.
By ship, and on land by roller logs.
They used clever strategy and tactics. The Greeks gave out the idea that they were going to flee from Salamis, and so the Persians sent a third of their fleet around to cover the rear channel. This evened up the two adversaries actually present at the battle. The Greeks also stayed in the strait at Salamis. The Persians, thinking the Greeks would try to escape in either direction, sat all night at their oars in a heavy sea swell to block any exit, and so were exhausted by the morning of the battle. They then had to enter the bay by splitting their fleet into two to go around each side of the island of Psyttaleia and so were on these two narrow fronts rather than is proper battle formation. This allowed the Greeks to strike them from the flanks before they could reform. And this was particularly decisive as the lighter Greek ships relied on ramming the sides of the Persian ships which preferred to close with an enemy ship and fight it side on. They were able to drive into the sides of the extended lines of Persian ships.
About 400 ships on each side, with two hundred per ship. 400x200=80,000.
they had a battering ram on the front of the ship that would ram into the enemy's ship until sunk
They used them to go to battle or to ship food.
The ancient Greeks claimed to have built an elaborate armored ship known as the "trieres," a type of warship that was crucial in naval warfare. These vessels were equipped with a bronze ram at the bow, designed for ramming enemy ships, and had a sleek, fast design that allowed for swift maneuvers in battle. The trireme was manned by a large crew of rowers and played a significant role in key naval victories, such as the Battle of Salamis in 480 BCE. Their advanced design and construction reflected the ingenuity of Greek shipbuilding and their strategic emphasis on naval power.
The Ancient Greeks traveled by the sea because the land was to mountainous to travel by foot. The Ancient Greeks traveled by foot, cart, chariot and ship.