Every team of heroes needs a home base, and the Lighthouse is that home base in Dragon Age: The Veilguard; however, the Lighthouse’s role as a safe haven for your party doesn’t mean there aren’t things there for you to discover. One of my favorite things about Veilguard has been the sense of discovery that it brings me, and the Lighthouse is no different from the rest of the game in that. From rooms you unlock, as you gain more companions to hidden chests, many secrets exist.

https://screenrant.com/dragon-age-veilguard-unlock-all-secret-areas-lighthouse/