Is Wonders of the Celtic Deep coming back?

Wonders of the Celtic Deep's return is unconfirmed. The show last aired on October 12, 2021, and has not announced a new season or episode since then.

Wonders of the Celtic Deep is a nature documentary series that explores the wildlife and natural landscapes of the Welsh coast. The series premiered in 2021 and was composed of a single season with four episodes, each providing a detailed look at the region's marine and coastal ecosystems.

The series features Siân Phillips as the presenter. It has a runtime of 60 minutes per episode.