The rugged coastline, the impression of having arrived at the edge of the world, the granite, the deep blue sea and that lighthouse which stands alone against the elements reminded me a little of landscapes belonging to Brittany in France, even if the vegetation also recalled the Mediterranean.
In any case, Cape Jervis is a completely beautiful place which I can only recommend and which faces Kangaroo Island from where ferries and boats depart for several tourist trips.
A tiny fishing village with scarcely 300 people, Jervis Bay is also the departure point for a long hike through southern Australia which led me to Flinders Range, the mountain range north of Adelaide. The only bad point is its proximity to Kangaroo Island which makes it a necessary point of passage for numerous tourists and visitors and slightly alters the place's charm.
The Heysen Trail starts at Cape Jervis and ends at Parachilna Gorge. It stretches along a distance of 1200 kilometres... Suffice to say that this hike is only for real walkers, with the determination of the pilgrims on the Camino de Santiago. It goes through typical southern landscapes with bush, craggy gorges, pine forests, vineyards and a few historic towns... Of course, rather than walking for 60 days (!), you might prefer to pick a short stretch (starting at Victor Harbour for example). Various sections of the trail are closed during the summer season because of the risk of fires. The dates vary for each section. Find out more from the tourism office.
Another Cape Jervis attraction is fishing for red snapper, marlin and salmon, either by boat or from the jetty.