The Maiden’s Tower is a tower on a tiny island at the southern entrance of the Bosphorus. This tower serves as a restaurant. The arrival rate of restaurant customers is 13 per hour with exponential distribution. The company has two boats. It is provided by these boats for the customers to go to and from the island. In the beginning, one of the boats is on the island, and the other is on the land. Boats move when there are five customers, and their capacity is also 5. The movement of the boats between the island and the land is uniformly distributed between 1-5 minutes. Dinner time of customers is uniformly distributed between 0.5-1 hour. Bots do not move when there is no one. We want to find the average waiting time for customers and boats. Only draw an Arena simulation model with modules and connectors