Quick Travel Answer
What is the best way to understand the Senusret III Tomb at Abydos?
See it as part of the South Abydos royal landscape, not as an isolated tomb. The underground monument, the Mountain-of-Anubis, the mortuary temple and the settlement of Wah-Sut were parts of a planned funerary environment. For most travelers, the strongest visit is a specialist guided extension to a wider Abydos day, with current access confirmed before departure.
Research by the Penn Museum describes the tomb as roughly 800 feet long, entirely subterranean, and a major transitional form between pyramid burial and the later hidden royal tomb tradition. Read the Penn Museum project overview.