Indonesia is not an easy country for people with mobility and visual impairments, and it is also a very large one, so we can give you a general description which of course will not be very specific.
However, generally in the cities there are hardly any smooth sidewalks and often you’ll have to compete and wheel or walk around motorbikes parked on them. Public transport is totally inaccessible, except a few model buses in the city of Yogyakarta.
There have been some attempts to make cities and sightseeing spots more accessible, an effort of the central government, but the actual implementation is still rather poor, so there might be paving blocks for visually impaired people, but then you’ll perhaps find obstacles on those tracks (such as public benches).
Indonesia has a large number of national, local and international airports: Accessible Indonesia has prepared some useful information on the airports of the destinations they offer and some general tips:
To cover the long distances within airports, wheelchairs are provided and – at least in the bigger airports – usually in proper shape.
Wheelchair-accessible toilets are – at least in the bigger airports – available. Door width is commonly 75 cm. An exception is the new airport in Bali with 95 cm.
Airline personnel are responsible for assisting wheelchair-using passengers throughout their way from check-in to embarkation and the other way round. This service, according to local persons with disabilities, is not yet flawless.
Problematic is the frequent absence of passenger bridges to and from the planes: either an airport has no bridge at all (Yogyakarta), or planes are sometimes parked in remote areas of the airport without access to bridges. Some airlines on some airports have mobile elevators (ambulift) for these situations (Garuda in Bali and Jakarta).
You’ll find at the link below more detailed information on the airports of Jakarta, Bali, Yogyakarta, Makassar: