Östliche Seespitze, Alpine summit in Neustift im Stubaital, Austria

Östliche Seespitze is a 3,416 m peak in the Stubai Alps, the second-highest of the Alpeiner Berge after the Ruderhofspitze. It is the highest point of the ridge running northeast from the Westliche Seespitze, separating the Falbesontal to the southeast from the Alpeiner Valley to the northwest. Its north flank is covered by the Alpeiner Kräulferner glacier, giving the mountain a wilder look from the north than from the south.

The sources document no first ascent date for the Östliche Seespitze; the 1863 claim is unsupported. Its recorded climbing history is tied to the Neue Regensburger Hut and Franz Senn Hut, from which the normal routes start. The normal route crosses the Hochmoosferner and climbs the southwest flank at UIAA grade I, taking about four hours; the Franz Senn Hut route over the Alpeiner Kräulferner is harder and an hour longer.

The two main access points are the Neue Regensburger Hut and the Franz Senn Hut, both used as bases for the summit. The normal route from the Neue Regensburger Hut crosses the Hochmoosferner glacier; the longer route from the Franz Senn Hut crosses the Alpeiner Kräulferner. The crossing from the summit to the Westliche Seespitze reaches UIAA grade III.

Climbing equipment and glacier gear are necessary for the ascent, as the route is technically demanding. Weather conditions can change quickly in the mountains, so starting early and having Alpine climbing experience is important.

The Alpeiner Kräulferner on the north flank makes the mountain look far wilder from that side than from the south. The harder route from the Franz Senn Hut crosses this glacier and takes about an hour longer than the normal route from the Neue Regensburger Hut.