Planning to visit Legazpi City

I’m from Manila and planning to have a short trip in Legazpi City. I really want to see Mount Mayon, kahit hindi malapitan. Gusto ko lang ma-experience makita ng personal. Recommendations are highly appreciated!

Please tell me about the following:

• tips
• food and resto to try
• must visit tourist attraction
• mode of transportation (is Grab available?)
• culture
• dos and dont’s

Thanks in advance!