Kendwa is a village in Zanzibar.
Kendwa is about 3 km from Nungwi, an easy walk along the beach during low tide, but impossible at high tide. The only option is a schlepp along back roads, hard going on the rocky roads, or a boat trip at a steep $20 per trip. One could perhaps walk to Nungwi at low tide and take the sunset cruise from there and ask to be dropped off at Kendwa.
The 2 km connecting road from the main route to the north was re-graded in 2007, and while still rough, is not nearly as bad as before. There is little difference here between high and low tides so swimming is possible any time of day. There may be some cloud and wind and quick rainshowers in June/July but the sun is usually out and the weather very pleasant. The beach is fine white sand or ground shells, the water turquoise blue, the sunsets spectacular and the local boat activity picturesque.
Meals are at around $5 - $20 at the various restaurants right on the beach. Although some of the restaurants have smaller portions, the food is delicious and mostly cooked well. I would recommend eating Seafood dishes rather than beef or even chicken.
Snorkeling trips are offered to the local Coral Gardens at $10, or round the northern tip of Zanzibar to Mnemba Island on the east coast (full day for $17 - $20). These trips are on the steady wooden dhows that are built in Nungwi with even the beams and benches hewn from trees. Although motorised, sails are hoisted to utilise the wind.
Kendwa Rocks' organizes Full Moon Parties. You have first to load cash on a card they give to you at a separate counter, as the bar does not accept any cash. Make sure to ask for a receipt to the person loading the cash (even if he insists that you don't need it), as some "mistakes" from the cash loaders have been reported. Also, although some bartenders claim that you don't have to pay if you arrive earlier than 10:00 pm and stay thereafter at the full moon party, this information is erroneous: if they find you after that time without the wristband they give to you when you arrive later and pay your entrance, the angry manager or the guards may kick you out.
The beach in front of Kendwa Rocks has wifi.
If you walk left when reaching the beach (South), you'll hit some gorgeous empty beaches with no buildings and no infrastructure. The perfect place to get away from the touts and have your own paradise.
During high season (July & August, December & January) reservations are recommended. Particularly around New Years Eve, the Kendwa hotels can be fully booked as far in advance as the preceding July.