Undated (AP) _ Americans went forth on the fifth of July, after celebrating the Statue of Liberty's 100th birthday, to continue their long holiday weekend with sunburns at the beach, smoky barbecues, the crack of baseball bats or, maybe, just a quiet day fishing.

Southern Californians celebrated with trips to the beach and a music festival, but a shooting at a concert in the California desert killed one man and wounded another, and three members of a family drowned near Carmel, authorities said. Fireworks on a beach Friday night ended with a 16-year-old boy shot dead after scores of fights among the crowd of 300,000.

Bostonians got back the Boston Pops on Saturday for its annual Fourth concert along the Charles River - a day late because the musicians were featured in the Statue of Liberty festivities Friday night.

The orchestra played a patriotic sing-a-long ranging from ''America the Beautiful'' to ''Yankee Doodle,'' for more than 275,000 listeners, then finished with a rousing performance of Tchiakovsky's ''1812 Overture,'' complete with church bells, cannon and fireworks.

And Boston's annual Harborfest continued, with an 18th-century drill team at the Statehouse, guided walks of scenic harbor islands, maritime displays and demonstrations at Faneuil Hall Marketplace and the city's fifth annual Chowderfest restaurant competition to see whose chowder's best.

Philadelphia city workers have been on strike for five days, but the Benjamin Franklin Parkway was clean Saturday after an estimated 400,000 people gathered the night before for fireworks. A planned concert was canceled because of the strike.

Mayor W. Wilson Goode had urged the crowd to take their trash with them, and about 30 non-striking management employees cleaned up what was left.

''Amazingly, there wasn't much trash generated,'' said Police Chief Inspector John Clark. ''It's a credit to (those in attendance). It's relatively clean, no comparison to last year.''

Mark Ferguson and Karen Bellinger of Cheektowaga, N.Y., made their wedding vows Saturday in a gondola at the bottom of the 165-foot Giant Wheel at Darien Lake, an amusement park in Genesee County between Rochester and Buffalo.

''They just wanted to do something different to make their wedding memorable,'' said park spokeswoman Pat Perryman.

Hundreds lined up on a New York City dock to visit the Statue of Liberty, closed for two years for renovations. Liberty Island was closed for one year. The first man inside after Nancy Reagan cut the ribbon had waited for 40 hours. And in the wake of Friday's harbor festivities and thunderous fireworks around the statue, Saturday's crowds in New York had a more sedate spectacle: a blimp race.

Hundreds of souvenir-seekers passed through a makeshift post office at New Jersey's Liberty State Park in Jersey City to buy brand new Statue of Liberty stamps with a Liberty Weekend postmark. The Postal Service substation was open through Sunday, but only Friday's patrons got July 4, 1986, cancellations.

Snow continued falling Saturday in Oregon and Montana after dampening July 4 fireworks. Up to a foot of snow chased campers from Crater Lake National Park in southern Oregon. And high wind left more than 1,500 Oregon coastal residents to endure the holiday without electricity.

''Most people made a mad dash to get out,'' said Maureen Briggs, a National Park Service spokeswoman at Crater Lake. ''We had to dig out a snowplow that had been parked for the summer.''

Near Carmel, Calif., three family members were killed and a fourth was listed in critical condition Saturday after violent waves swept them out to sea at San Jose State Beach.

Monterey County Sheriff's Sgt. John Darling said a friend of the family, who was with them when the accident occurred, told investigators the mother had been posing for a picture at the surf when she was hit by a wave and swept into the ocean. The father, son and 11-year-old daughter ran to her rescue, only to be swept in themselves by a second wave.

The bodies of the parents were recovered and the daughter was rescued and was listed in critical condition Saturday night at Community Hospital of the Monterey Peninsula.

In Santa Monica, Calif., police reported 200 fights at the annual seashore fireworks display. A 16-year-old boy was shot in the head and killed, 10 people were attacked with knives, two policemen were the targets of hurled bottles and 48 people were arrested before the beach was cleared early Saturday, said Santa Monica police Sgt. Harry Kutzvach.

One man was killed and another wounded Saturday night when gunfire erupted in the audience at the free, two-day High Desert Music Festival in Adelanto, 65 miles east of downtown Los Angeles.

Thousands of fans of 1950s and early 1960s music had flocked to the concert to hear The Drifters, The Coasters, Little Anthony, Martha Reeves and The Righteous Brothers.

At Zuma Beach near Los Angeles, professional beach volleyball players took to the sand courts and several hundred yards away the Western Surfing Association conducted its regional championships.

In Sandusky, Ohio, ''I think we've started a new tradition,'' said school Superintendent Gene Kleindienst, one organizer of a different sort of July Fourth parade.

Sandusky's parade was immobilized, turned into a stationary block party, by liability insurance worries. The band marched in place, the county fair queen's float was parked, and community group displays lined the street.

And in Erie County, N.Y., county sheriff's deputies and Orchard Park police said Saturday they had arrested 38 people at a Friday night rock concert featuring the 1960s favorites the Grateful Dead and Bob Dylan, along with Tom Petty and the Heartbreakers. Most were for drug possession but one man was ''a little nuts'' and kicking cars, said sheriff's Chief of Patrol Gerald Mack.

Fourth of July fireworks displays killed two people and injured about 70, including 30 who suffered minor injuries when a rocket went into the stands at a show in Newark, N.J. and at least 25 people who were hurt when pyrotechnics burst into flame on the ground and fired into a crowd at Rehoboth, Mass.