This flyer (PDF) was handed out as the first clue at Twin Pines Park in Belmont. The flyer has two boxes on the bottom. The one on the left lists a bunch of house names followed by their street addresses. The one on the right has a list of sponsors with the tag line "Speak their names with pride". This was a phonetic clue. If you read the sponsor names out loud, each name had a number in it somewhere. For example fortunate has a 4 in it - "FOR-tunate". To solve this clue, take these numbers and index into the sponsor name. For example, the 4 indexed into fortunate would result in a "T".

The solution is "Go To Groovebox" and was solved by:

Gr-EAT Dogs	G
Pogo Cali-FOR-nia	O
Lieu-TEN-ant Dan's	T
St-ATE Grower's Assoc.	O
C-ATE-ring Carnival	G
Soccer Clas-SICS	R
Rocket TU-nes	O
Athletes Po-TEN-tial	O
Avery's TU-lips	V
FOR-eign Cinema	E
Candy Ba-SICS	B
Ca-NINE Groomers	O
W-EIGHT Expectations	X

Groovebox is listed in the house list with the address at 1653 Carleton Ct. Redwood City, CA.