Sunday sessions are designed for Intermediate to Advanced TWIM practitioners. We normally sit for one hour (first half-hour with a guided meditation, followed by silent meditation).
Sometimes we have very advanced dhamma teachers like David Johnson, Delson Armstrong, Syl, or Doug Kraft as guest speakers. They either do dhamma talks, or answer your questions on meditation and the dhamma. Or we discuss a sutta which we read on our own first, before the session. Please plan for about 2 hours.