Thats the first time I have heard of an anchoring
fee in Mag Bay.Maybe its just if you go up the channel to San Carlos?
They charge $10 to anchor
at Cabo.If you dont need anything in the town,try anchoring
at the opposite end of the beach near the rocks.Its a 4 mile round trip for them to try and collect their fee so maybe they wont bother.It worked for me.Costco is within walking distance ,if you are a member
,and also a couple of small grocery stores.
If you dont need anything at Turtle Bay,try the bay 5 miles north of there.You have to enter it from the south as there is a lot of kelp across the north entrance.I had a good time there hiking through the arroyos to the coast and found landing on the beach to be easy.Also there is a small natural rocky harbor which could be used if the swell is up.There shacks there but the fishermen were not poor and had vehicles,solar panels
,satelite tv etc.