Originally Posted by gglave

From personal experience -

- Bowen Island to Horseshoe Bay
- Vesuvius to Crofton
- Langdale to Horseshoe Bay
- Earl's Cove to Saltery Bay
- Denman Island to Buckley Bay
- Denman Island to Hornby Island
- Quadra Island to Campbell River
- Quadra Island to Cortes Island

There are likely others, such as the ferries to Sointula and Alert Bay, but I don't have personal experience with those.