noun
entrant; visitor; admission holder
Refers to a person who enters a park, zoo, garden, or similar enclosed facility, often in the context of admission or entry counts.
今日の動物園の入園者は5000人を超えた。
Today the zoo had over 5,000 visitors.
入園者はチケットを購入してからゲートを通ってください。
Entrants should purchase a ticket and then go through the gate.
来園者 emphasizes the act of coming to the park/zoo, often used in announcements or reports, while 入園者 focuses on the entry itself.
Compound of 入園 (entering a park/zoo) + 者 (person). The reading is straightforward on'yomi.