Rosh HaShanah Morning ServiceAugust 29, 2018 tagged Mount Sinai Simi Valley by Meridith Patera Event Details Date: September 10, 2018 10:00 am – 1:00 pm Venue: Mount Sinai Simi Valley High Holiday service at Mount Sinai Memorial Park Chapel. High Holy Day Tickets Adult ages 26 and over $250.00 USD Students/Young adults ages 13-25 $135.00 USD Senior ages 65 and over $135.00 USD Member's Immediate Family Ages 13-64 $175.00 USD