secret season
n.— «This latter half of spring, after the spring breaks have ended, is often called the “secret season” on the coast, because awe inspiring natural delights like these are quite common, but the beaches are generally deserted of tourists. It’s also a time when some of the most inexpensive lodging prices are available, making this the most interesting and varied season on Oregon’s coast.» —“Spectacular Spring Sights Continue on Oregon Coast” Beach Connection (Oregon) Apr. 19, 2007. (source: Double-Tongued Dictionary)