Looking for Trekking Spots in Ernakulam

I am 23M and I’m planning to start doing short treks every Sunday early morning before sunrise around Ernakulam or nearby areas. Would love to get some suggestions on good trekking spots that are safe, scenic, and not too crowded.

Also, if anyone is interested in joining me on these weekly sunrise treks, feel free to DM or reply here. I’m just doing this to stay active, enjoy nature, and explore new places around Kochi. Nothing too intense, just peaceful and consistent weekend vibes