Immersive Dawnguard Dayspring Pass SE (IDDP) Mod
MODA new Dayspring Pass entrance (NO MORE TINY CAVE!!).
This mod adds map markers and changes the Dayspring Canyon entrance to be more immersive and believable (NO MORE TINY CAVE ENTRANCE!!).
But please note if you remove this mod before or during the first stage of the "Dawnguard" quest you may not see a quest marker in the Skyrim world space.