No. An onshore application for the C6 Visa is no longer available. You must apply for the visa while you are outside Indonesia.
If you are planning to leave Indonesia and return with a C6 Visa, please contact us as early as possible so we can help make the process as smooth as possible for you.
It is also not possible to travel to Indonesia first and then look for a volunteering opportunity. You must already have a confirmed volunteering placement before applying for the C6 Visa, as this placement is required for the visa application. Since the C6 Visa can only be applied for from outside Indonesia, you need to arrange your volunteering opportunity before travelling to Indonesia or you would have to leave Indonesia, apply for the C6 Visa and then re-enter once the visa got issued.