From East Bay: Take any Daly City / Millbrae bound train and get off at Embarcadero Station. Take the #2 Bus at Steuart and Market(Ferry Plaza) and get off at Laguna, or Buchanan bus stops.
From Millbrae: Get off at Powell St. Station. Walk North 3 blocks to Geary and take the #38 Bus. OR, Get off at Montgomery Station. catch the #2 or #3 at Sansome & Sutter Sts.
From Union Square, take the #38 Bus from Geary Street, or the #2, #3 from Sutter Street. Get off at Laguna or Buchanan bus stops.
From the Marina Take the #22 Fillmore bus, and get off at Fillmore and Sutter Street. Walk one block to Post. St.
Dogpatch districts: Take the #22 Fillmore bus, and get off at Fillmore and Geary Blvd. Walk one block to Post.
From the Bay Bridge or Hwy. 101 South, take the Golden Gate Bridge/Octavia Boulevard exit. Octavia will veer left onto Fell Street. Turn Right on webster Street and then right on Post Street.
From Golden Gate Bridge, take the the Lombard Street exit, turn right on Webster and then continue to Post Street.
Get off at 4th and Townsend St, end of the line for SF. Take #45 or #47 bus to Van Ness / Geary. Either walk 3 blocks to Japantown or take #38 bus to Geary / Laguna stop. Walk 1 block to Post St.