Meals can be arranged. There is a nice beach and a shop where a litre of ice-cold beer is only 3.20 Tala. Continuing around the Northwest corner of Savai I requires good hitching. Your best bet is to ask the locals you meet along the way about accommodation in their area, otherwise proceed to the north side of the island, to Stevensons Hotel at the village of Manse. You can pitch a tent, rent a fale, or stay in the hotel.
Meals are available in the hotel restaurant.
Heading down the cast coast is Siufaga Beach House, near Tuasivi, on another excellent beach. Clean and well managed camping is 10 Tala. or rent a self-contained fale for 90 to 100 Tala. From here it s only an hour to the ferry back to Upolu. Upola is the most populated and developed island. Apia, the capital, has nothing special to offer, except the large market by the bus station.