Sa mga travelers diha within Ph, any suggestions na pwede suruyan during my bday?

It's me again! Change of plan since a friend of mine told me na I should at least try muna a domestic flight as a rookie traveler to experience airplane rides, airport protocols and etc. Then mao na ko mag travel outside the country. Sakto man pud siya kay karon lang ako motravel gyud niya ako pa gyud rag usa. So she told me to try a trip here in Ph sa. Tabangi ko ninyo asa nindot mo suroy on my birthday. 3 days and 2 nights, budget is around 20k, all in. Sorry sa istorbo huehuehu. Nasa bucket list manggud nako motravel somewhere nice on my birthday. TIA! <3