Longitudinal or Pacific coasts may also undergo submergence but,
instead of forming rias, develop into much broader, open sounds
with ridges of land or islands between them. These larger inlets
include the Inland Sea of Japan , the area around Vancouver Island in
British Columbia, Canada, and stretches of sea between islands in
archipelagos such as the Philippines and the Solomon Islands. The
most dramatic stretch of drowned longitudinal coast in Europe, however,
is the Dalmatian coast of Croatia where numerous long, narrow
islands lie parallel to the mainland and are separated from it by deep
sounds