  Nonlocality plays a fundamental role in quantum information science.
Recently, it has been theoretically predicted and experimentally demonstrated
that the nonlocality of an entangled pair may be shared among multiple
observers using weak measurements with moderate strength. Here we devise an
optimal protocol of nonlocality sharing among three observers and show
experimentally that nonlocality sharing may be also achieved using weak
measurements with near-maximum strength. Our result sheds light on the
interplay between nonlocality and quantum measurements and, may find
applications in quantum steering, unbounded randomness certification and
quantum communication network.
