I have been trying to track down a coolant leak on my engine. I has been tricky to do because it has been right under the air intake next to the thermostat/temp sensor.

However, today using my trusty soapy water spray bottle, I found it just past the temp sensor (which is what I thought was the cause of the leak before) coming from behind, or next the the AC compressor. (see attached video)

So my question, Is this a head gasket or is it possible it's a freeze plug behind the AC compressor? OR is it something else entirely?

Any help is appreciated!