While traveling around the country, mpark65 became aware of a piece of geoart in Connecticut comprised solely of Adventure Labs. This group of 22 Adventure Labs at the I-95 rest stop in Branford, CT got mpark65 thinking about doing something similar in California. Soon after, he saw a series of Adventure Labs between La Jolla and San Diego that formed a Geoart spelling out "SD". This group of Adventure Labs is known as the "Welcome to San Diego" series.
Furthermore, when he looked at all of the Locations for those Adventure Labs, mpark65 saw that they spelled out "CALIFORNIA" across Fiesta Island Sunset Beach.
Not to be outdone, mpark65 organized a group of cachers to create a piece of virtual artwork on the sand in Seal Beach called the "OC-LA Geoart" Adventure Lab series. These Adventure Labs form a Geoart that reads "CA".
When one looks at the collection of Locations that compose the "OC-LA Geoart", the Locations spell out "OC-LA".
I wanted to commemorate the OC-LA Geoart series with some sort of puzzle cache. Since I don't own all of the Adventure Labs, I don't feel right callling this a "bonus cache", so let's call it a "non-bonus bonus cache". 
Below are six questions regarding the OC-LA Adventure Lab Geoart series. You're not required to start or complete any of the individual Adventure Labs to solve this puzzle. But, why not spend a bit of time at the beach and have a little geocaching fun? When you've answered the following questions, put the six letters corresponding to your answers in alphabetical order, and enter that string of letters into Certitude to reveal the location of the final non-bonus bonus cache.
1) How many Adventure Labs are in the OC-LA Series?
A: 10
B: 20
C: 40
D: 80
2) Who organized the OC-LA Series?
E: The Mayor of Seal Beach, Thomas Moore
F: 56krap
G: Groundspeak
H: mpark65
3) How many different geocachers created an Adventure Lab in both the Welcome to San Diego series and the OC-LA series?
I: 0
J: 1
K: 2
L: 3
4) How many different geocachers created an Adventure Lab in the OC-LA series?
M: 34
N: 37
O: 40
P: 43
5) Who created the greatest number of Adventure Labs in the OC-LA series?
Q: Blondilocks
R: f0t0m0m
S: Chuy!
T: lulu499
6) How many Adventure Labs in the OC-LA series contain the word "California" spelled out? ("CALIFORNIA" counts, "CA" doesn't)
U: 0
V: 20
W: 12
X: 8
You can validate your puzzle solution with
certitude.
All of these questions are based on information taken from the Adventure Lab app on September 26, 2024. If anybody knows of any new information since then that might impact these questions, please let me know.