Many grown-ups fondly remember their beer-infused visits to Lake Havasu City, but the Arizona community is more than a spring-break destination for college kids. The lake attracts couples and families too. It's particularly pleasing in fall after the thermometer drops from summer highs that can reach the 120s. The tab for two can vary wildly: Soup, sandwiches and beer at Brew Shack will cost $25, but two nights aboard a houseboat will set you back nearly $1,600. Divide that by 10, however, and it works out to $80 per person per night.
Because this place is all about the water, why not consider sleeping on it? In fall and winter, Lake Havasu Houseboats ( 843-9218) rents a 60-foot vessel for $1,595 for two nights (the minimum stay). With two bedrooms plus berths, the boat can comfortably sleep 10. It offers all the comforts of home, including a full kitchen, and a sun deck with a slide that plops you into the lake. For landlubbers, the visitor center (422 English Village, Lake Havasu City;  855-5655) can provide other lodging choices.