With European hotspots increasingly overpriced, overcrowded and affected by the anti-tourism protests that are gearing up for a second summer, a growing number of Americans are trading the Riviera and other parts of the Mediterranean for islands that are closer to home. As of April 10, the Caribbean had experienced a 26% year-over-year increase in overall summer bookings according to data provided exclusively to Bloomberg by the Virtuoso Travel Network, a collective of about 20,000 travel advisers.