La Feniglia is the southern strip of land connecting Monte Argentario to the mainland. It is a lovely nature reserve, about 6km long, consisting of marshy lagoon on one side, a sandy beach on the other and pine-covered sand dunes in the middle. Lovely for walking or cycling.
We hired bikes and cycled from one end to the other and back again. There are suitable tracks running along both sides of the strip and along the middle, so you have plenty of choice. It was a lovely cycle ride and we saw several deer and a tortoise, lots of bird and lizards, and only a couple of other people in the 3 hours that we were cycling. Wear mosquito repellant as the reserve is so near the lagoon – I got bitten twice on the face.
You can hire bikes at both ends of the strip - we hired ours from the Monte Argentario/Porto Ercole end. From the road that circumnavigates the island, follow the signs to Feniglia and park in a big car park/motor caravan park on the right. The bike hire place is on the left in the car park. It cost about E10 to hire a bike for a whole day.
If you exit the car park and turn right towards Feniglia, you will soon come across a turning on the left that takes you to the reserve (look out for a yellow signpost). If you don’t turn left here, the road takes will take you to the beach car parks and bars, if you prefer to just laze in the sun.
The beach runs along the entire south side of La Feniglia, so you have plenty of choice of where to go. It is sandy so good place for swimming.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.