En los fenómenos luminosos que se pueden calificar de “macroscópicos” como los microscopios y telescopios, el principio de la óptica con el que funcionan, se denomina

In the luminous phenomena that can be described as "macroscopic" such as microscopes and telescopes, the principle of optics with which they work is called

corras is the only one that is informal but doesn't follow the suffix rule. correr is the verb. corre is the formal verb form. corra would be used as the formal is corre ended with an a.

your best bet would be corras, it's the only one that is informal but is still wrong

1.) la ruta arqueologica

2.) la ruta artesanal

3.) la ruta paraiso artesanal  

4.) la ruta de las flores

5.) la ruta sol y playa

6.) la ruta de la paz