diff --git a/odc/geo/_map.py b/odc/geo/_map.py
index 7e38b10..1aa3ecc 100644
--- a/odc/geo/_map.py
+++ b/odc/geo/_map.py
@@ -271,13 +271,13 @@ def explore(
     # Add to map and raise a friendly error if data has unsuitable dims
     try:
         xx.odc.add_to(map, **kwargs)
-    except ValueError:
+    except ValueError as e:
         raise ValueError(
             "Only 2D single-band (x, y) or 3D multi-band (x, y, band) "
             "arrays are supported by `.explore()`. Please reduce the "
             "dimensions in your array, for example by using `.isel()` "
             "or `.sel()`: `da.isel(time=0).odc.explore()`."
-        )
+        ) from e
 
     # Zoom map to extent of data
     map.fit_bounds(xx.odc.map_bounds())