How do I recursively unzip nested ZIP files?

Given there is a secret file deep inside a nested ZIP file, i.e. a zip file inside a zip file inside a zip file, etc...

The zip files are named 1.zip, 2.zip, 3.zip, etc...

We don't know how deep the zip files are nested, but it may be thousands.

What would be the easiest way to loop through all of them up until the last one to read the secret file?

My initial approach would have been to call unzip recursively, but my Bash skills are limited. What are your ideas to solve this?

Thanks Cyrus! The master wizard Shawn J. Goff had the perfect script for this:

while [ "`find . -type f -name '*.zip' | wc -l`" -gt 0 ]; do find -type f -name "*.zip" -exec unzip -- '{}' \; -exec rm -- '{}' \;; done