Are you a Catholic? It’s proscribed.
A Camino De Santiago tattoo would be celebration of my pilgrimage to honor St. James and indulgences I was granted that year for the pilgrimage. I dedicated two of my indulgences I earned that year to dead relatives, which is allowed by Cannon Law. I am considering getting it prior to my next Camino. I don't see such a tattoo as being a “false god” or as more important than God. I see it as attesting to my acceptance of God and religion. But that is just my opinion.
Tattoos if celebrating something sexual, satanic, or done for immoral purposes, are prohibited.
I would refer you to the following as one of many explanations as to why Tattoos are not “proscribed.”
https://catholicherald.org/special-sections/myfaith/is-getting-a-tattoo-a-sin/