In case you are already on the island the guide can wait you at the end of the pier, near the bar "Grotta Azzurra"
The guide will wait you at the exit of the port of Naples. Please provide name and dock of your cruise. The guide will have your name on a sign.
The guide will end the tour at the port of Capri so you ca reach back Naples, Salerno or Sorrento, or if you stay in Capri directly there.