Towers are considered locations in Elden Ring. These towers are scattered around the world of the Lands Between. Sometimes more than one rise can be found in the same area, like Seluvis's Rise, Renna's Rise, and Ranni's Rise in Three Sisters. However, only one exists in Dragonbarrow, called Lenne's Rise.
Like Renna's Rise in Elden Ring, Lenne's Rise entrance is also blocked by a spell. However, while Renna's tower can be unlocked after progressing Ranni's questline, Lenne's Rise doesn't seem to open, no matter what players do.
Elden Ring: Ranni Full Quest Walkthrough
Lenne's Rise is located in Dragonbarrow, northeast of Caelid. Even though it's in Caelid, players who just started Elden Ring can still reach Lenne's Rise, although they'll have to go through some complicated steps. This method requires progressing D, the Hunter of the Dead’s story quest.
After obtaining a Deathroot from a Tibia Mariner boss in Elden Ring, show it to D, Hunter of the Dead in Roundtable Hold. He'll leave a red mark on the map. Teleport to the nearest location (Third Church of Marika), then follow the red mark, until players reach a gateway. Use it to teleport to Greyroll's Dragonbarrow, just outside Bestial Sanctum (northwest of Caelid).
Ignore the Black Blade Kindred boss near the entrance and use Torrent to ride southeast. From here, there are two bridges, the first is protected by a dragon, so avoid it.
Instead, keep going southeast to the second bridge. It’s both safer and will lead directly to Lenne's Rise Site of Lost Grace. However, be careful, there are tons of poison traps scattered alongside that road. Cross the bridge then light the bonfire.
If Tarnished don't want to be Poisoned, they can use the first bridge. It's guarded by Flying
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