Mauritius makes relatively decent provision for those with mobility problems. Modern buildings conform to international standards for disabled access, though public toilets, footpaths and lifts tend not to be as good. Most top-end hotels have wheelchair access, lifts and a handful of rooms with specially equipped bathrooms. In big hotels there are always plenty of staff around to help and it's often possible to hire an assistant if you want to go on an excursion or a boat trip. With a bit of extra notice some riding stables, dive centres and other sports operators can cater for people with disabilities.
None of the public-transport systems offer wheelchair access. Anyone using a wheelchair will be reliant on private vehicles.
Download Lonely Planet's free Accessible Travel guides from https://shop.lonelyplanet.com/categories/accessible-travel.