90 jours ? J'y suis allé 2 fois cette année et c'est 30, renouvelables une fois ...
De plus, il existe un "petit" visa pour moins de 7 jours, qui est si mes souvenirs sont bons de 10 / 15 USD
De plus, ne connaissant pas la nationalité de l'intéressé(e), je poste l'ensemble des données publiées sur le site suivant (nécessite un VPN)
http://www.projectvisa.com/visainformation/Indonesia
Visa Information
The following nationalities will not require a visa for short visits (30 days) to Indonesia:
Brunei, Chile, Hong Kong, Macao, Malaysia, Morocco, Peru, Philippines, Singapore, Thailand and Vietnam
The following nationalities can obtain 30 day visa on arrival:
Argentina, Australia, Austria, Bahrain, Belgium, Brazil, Bulgaria, Cambodia, Canada, China, Cyprus, Czech, Denmark, Egypt, Estonia, Fiji, Finland, France, Germany, Greece, Hungary, Iceland, India, Iran, Ireland, Italy, Japan, Kuwait, Laos, Latvia, Libya, Liechtenstein, Lithuania, Luxembourg, Maldives, Malta, Mexico, Monaco, Netherlands, New Zealand, Norway, Oman, Panama, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Slovakia, Slovenia, South Africa, South Korea, Spain, Suriname, Sweden, Switzerland, Taiwan, Tunisia, United Arab Emirates, United Kingdom, and USA.
The Visa on Arrival fee for up to thirty days is US$25. This visa can be extended up to an extra 30 days for a fee of 250,000 Rupiah (US$25).
A visa on arrival available at most international airports and major borders. If you are crossing at a non recognised entry post (or port) you will need a visa in advance.
Single entry visas (60) days, Multiple Entry Business Visas and Temporary Stay Visas are available on application prior to departure at the nearest Embassy or Consulate of the Republic of Indonesia.