Depending on where you are in Mozambique, the road quality can vary greatly. Some of the tar roads are in excellent condition, then all of a sudden, there might be a 30mile stretch where the potholes are big enough to swallow your tire and crack your axle. Fortunately the roads are not busy, so itś feasible to zig zag between both lanes to avoid the potholes, or even drive off the side of the road. And during some stretches, kids will fill in the potholes with dirt, and ask for money for their service.
Getting to Tofo required us to take a few poorly maintained roads, but we got there all the same. We stayed in a nice A-frame chalet, only meters from the beach, and spent two days diving. 
The diving was fantastic, with high visibility, and great sea life. We dove the manta reef, which as itś name suggests, there were manta rays. The mantas we saw were 18 feet or so, but they can grow up to 25feet and can weigh as much as 5000lbs. Watching them puts you in awe. They are so graceful and such beautiful creatures of the sea.
During the day, the locals walk up and down the beach selling fresh fish– prawns (tiger shrimp), baracuda (spanish mackarel), and crayfish (lobster). We bought a few crayfish and had a delicious braii (bbq).