A wake tower assembly for use with a watercraft, including an arch portion extending across a width of the watercraft, first and second pivoting structures coupled to first and second ends of the arch portion, the first and second pivoting structures configured to attach to port and starboard portions of the watercraft to facilitate rotational movement of the arch portion between a lowered position and an upright position, and a first locking mechanism provided to the first pivoting structure including a biased pin member configured to engage an opening of the first end such that when the arch portion is rotated from the lowered position to the upright position, a biasing force of the biased pin member causes the biased pin member to engage the opening to mechanically lock the arch portion in the upright position.