Lake Tulloch

Lake Tulloch sits at around 500 feet in the hills near Copperopolis, which means it is genuinely warm — swimming-in-June warm, not gasping-in-August-like-an-alpine-lake warm. It is shaped like a sprawling X with long arms and rocky coves, and its level is held fairly steady through the summer, which makes it the reliable water-skiing and swimming lake in this part of the county.

From the cabins it is about fifty minutes: down Highway 4 through Angels Camp, then out towards Copperopolis. That makes it the easiest warm-water day trip we have, and a good answer for a group where half the people want a lake and the other half want a pool.

This is a powerboat lake. Water-skiing, wakeboarding, tubing and jet skis are the main business here, alongside kayaks and paddleboards in the quieter arms early in the day. Wind picks up in the afternoon on the open sections, so the glassy water is a morning thing.

There are public launch ramps and a marina; fees, hours and any inspection requirements for boats brought from other lakes change from season to season, so check with the operator before you tow anything down the hill. Quagga and zebra mussel inspections are a real thing on California lakes.

The coves are the swimming. Much of the shoreline is private, so aim for the designated day-use and beach areas rather than assuming access, and be aware that the banks are rocky in places — water shoes earn their keep.

Fishing is decent for bass, catfish and crappie, best early and late in the day around the rocky points and the backs of the arms. Bring shade: there are almost no trees, and the foothills in July are unrelenting.

Fuel and groceries are easiest in Angels Camp on the way down; there is much less out at the lake. Take more water and ice than you think you need, plus sunscreen and hats for everyone — the temperature difference between Arnold and the lake is often twenty-five degrees.

Go early on summer weekends. The ramps get busy, parking fills, and the water is at its best before eleven. Then come home to 4,000 feet, where the evening is cool enough to sit outside.

There is not much shade or much town out there. Both cabins are fifty minutes up Highway 4 in Arnold, in the pines at 4,000 feet — a hot tub, a full kitchen, cool nights and Calaveras Big Trees five minutes away for the morning after a day in the sun.