The support towers were large elevator shafts supporting the Haven Palace during Jak II. Towering over the city, these large bowed constructions were connected to the Palace via heavily defended support cables that helped to stabilize the Palace's top-heavy design. Jak once rode an elevator to the top of a support tower and traversed the support cable in order to infiltrate the Palace in the mission "Ride elevator up to palace". Aside from this mission, the support towers are not prominently featured throughout the game, but can be seen from the ground towering over the landscape.