IMS offers Buddhist meditation retreats at two facilities – the Retreat Center and The Forest Refuge – in rural central Massachusetts. Both centers teach vipassanā.

From 1996-2006, IMS offered a correspondence course developed by its founders Joseph Goldstein and Sharon Salzberg entitled Insight Meditation, which consisted of 12 audio cassettes and a workbook. The course later evolved into Insight Meditation: An In-Depth Correspondence Course, with 24 audio CDs and an 88-page workbook.

Vassa is a basic practice for Buddhist monastics. During this three-month retreat, monks seclude themselves and follow a tight regimen of meditation and dharma study. Every year, the Insight Meditation Society runs a three-month course that has been called the “marathon of meditation”. Save for triweekly interviews with instructors and nightly lessons, the retreatants observe full silence. In Theravada tradition, after lunch, they do not eat another meal, but are allowed snacks and drink tea, which is not accepted by many Buddhists as proper practice. The center’s courses provide instruction and practice in vipassanā or mettā meditations.

According to en.wikipedia. Source of photos: internet