It's the biggest park in Lisbon, there are many smaller parks, playgrounds, running and cycling trails, hills and picnic spots. Monsanto covers a big area on the edge of the city and is easily accessible by car, buses and train (little walk required). Becomes very lively during summer weekends and afternoons when people come with friends and families to enjoy the nature.
The well is a short walk uphill from the parking lot. The view of the well was really pretty and thereās a short path down to the well that you can see some of the ruins up close.