Thanks.
I could've use something much simpler in MSPaint, but I wanted a bit of reusability so I took the pains to make something more elaborate in Photoshop.
First I used Google Map to find an actual bamboo forest. I switched over to Google Earth to have the scaling and perspective I wanted then made a screen capture to copy it over to my academic version of Photoshop.
With the image pasted in, I then created a checkered pattern to establish a 100-meter scale. I added a green path to symbolize the park path the PC group was following.
Then I created larger icons which I tweaked, added a bit of visual flair and lowered the transparency some to make them more part of the picture before then reusing them as the NavPoint icon, the friend icon and the enemy icon.
I distributed those icons around the map, moving and rotating as needed. When I had them in positions matching previous text descriptions, I started writing labels for each of those, going with the bolded Arial font - going all caps but resorting to a smaller font size where you'd usually expect lowercase letters.
Finally, I wanted to subtly tie in each name to their respective symbol, so I bounded the text/names in a shadowy box, and created a line from each that would reach out to each symbol to help in associating them.