I am looking for two separate Japanese phrases that each convey meanings as follows,
A "study season" in which the study or lecture begins to ends with some short holidays in between. For example, a study season of 4 months long that spans from the beginning of April to the end of July with some short holidays (such as golden week or other national holidays).
A "long holiday season following study season" with no study at all. For example, it spans for about 1-3 months after study season.