It's that time of year again: 4/20, possibly the busiest day for Bay Area dispensaries. Oakland club Harborside will have extended hours (9 a.m.-8 p.m.), exclusive deals, special guests, and promotions including free edibles with any purchase, $150 Sun Grown Blue Dream ounces, 10 percent off all vaporizers, free gram of hash for the first 142 patients that walk through the door, Top Shelf Pre-Rolled Joints for $10, Sovereign's The Pure (S/I) flowers for $40 an eighth, and High Times Cannabis Cup Winning Boggle Gum flowers by Delta559 will be on sale for $55 an eighth while supplies last (limit two eighths per patient).

Over at Oaksterdam, NORML is running a raid benefit:

The Oaksterdam 4/20 Film Festival will raise funds for OU and CaNORML in the first post-raid event at the Oakland Medical Marijuana University, premiering two new films "California 90420" and "The Green Goddess".

Doors open at 3 p.m. for the event, which will take place at Oaksterdam University, 1600 Broadway in Oakland. Suggested donation for the festival is $10, which can be made at the door or in advance by visiting CANORML.org

Elsewhere around the Bay, your options include:

- the 4/20 Stones Throw Showcase with Dam Funk at 103 Harriet.

- the 4/20 Bake Off with Wiz Khalifa at Bill Graham Civic Auditorium.

- and the Womp Island 420 Festival on Treasure Island.