While other regions in the Maritimes faced a prolonged drought this year, Sable Island remained unaffected due to its abundant underground reservoir of fresh water. Situated 290 kilometers southeast of Halifax, the island boasts a unique natural phenomenon where a significant supply of fresh water is held beneath the sandy surface.
Audrey Levesque, a Parks Canada visitor experience coordinator on Sable Island, described the water reservoir as a massive sponge-like structure floating atop the denser salty ocean water. This underground water source, replenished by slightly higher rainfall and snow compared to Halifax, quickly seeps into the sand, forming a substantial groundwater layer up to 30 meters deep.
Levesque explained that the stored fresh water creates a rounded volume under the island, gradually thinning towards the beaches. This occurrence, not exclusive to Sable Island, is common in coastal areas where water accumulates in wet sand, providing essential water sources for wildlife. The island’s diverse ecosystem benefits from 21 permanent ponds and year-round water access.
Despite the dry spring experienced elsewhere in Nova Scotia, Sable Island remained well-supplied with water. The island’s renowned horses have adapted by digging wells in the sand to access water when natural ponds are scarce. Even for the few inhabitants on the island, a reliable well ensures access to high-quality fresh water, surpassing the mainland’s water quality.
While the mainland grappled with parched lands and drying wells, Sable Island maintained its water security without concerns of shortages. Levesque assured that regular monitoring of the well’s water level ensured a consistent and plentiful supply throughout the season.