Best bet is a Google map with pins like Quartersnacks does for NYC
How do you make one of those that is truly private? I tried importing my iCloud pics of spots (with geotags embedded) into a custom Google Map, but it kept trying to get me to add my photos to Google's Places page or something.
From what I've read if you make a google map, the company stores your photo at X location with all the other ones from that location that have been uploaded to Google, so when people look up that location in google they get pics of it from users who have taken pictures there.
Example: There's a public park in your city called John Doe Park, and there's a sick ledge spot tucked away in the back of the park. You take a pic of the spot with the intention of putting it on your Google spot map. Google wants people to be able to easily see pictures of John Doe Park when they look it up, so Google automatically puts your pic (that you wanted to stay private and just in your circle of friends) with all the other pictures of John Doe park on it's first page of results. Some city employee who works at John Doe park does some googling out of boredom and sees what to them is a "vandalized" ledge in the park that they never noticed previously, or if they did they didn't really think about it. They deem it an eyesore and have a team of employees sandblast the wax off and drill knobs in. A low-key, previously sick spot is now gone.
I don't want people googling the name of their office or whatever and getting a suggested google pic of the skate spot, particularly if the pics are tied to my government name. Seems like the easiest way to get spots shut down, knobbed, etc and myself in potential hot water.
Trying to move my spot map off my iPhone camera roll and onto something more specific, because the pics of spots keep getting clogged with photos and videos from my regular life lol.