peak season

US /piːk ˈsiː.zən/
UK /piːk ˈsiː.zən/
"peak season" picture
1.

the time of year when a particular holiday destination or type of business is busiest and most popular

:
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Traveling during peak season can be very expensive.
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Hotels are usually fully booked during peak season.
:
high seasonbusy season
:
off-seasonlow season
:
peakseasonseasonalseasonedseasoningdry seasonholiday season