Complex sentence: Being close to end of the season is a difficult situation for management to meet obligations required on the note, therefore, as a consequence, remains unusually open as late as possible, until September 25th, to try to generate sufficient revenue.
Split into simpler sentences: Being close to end of the season, difficult for management to meet obligations required on note. Park remains unusually open as late as possible, until September 25th, to try to generate sufficient revenue.