Prince William's bachelor party reportedly set for this weekend

(CBS) Prince William will reportedly celebrate his last days of singlehood this weekend.

That's when the 28-year-old, who is marrying Kate Middleton on April 29, is having his bachelor party (or, as the Brits call it, the "stag" party), according to Us magazine.

Pictures: Prince William and Kate Middleton
Special section: The royal wedding

A royal aid told the magazine that the boys-only revelry will involve "plenty of booze" and "legendary activities." The source wouldn't reveal locations or other details, citing security and privacy reasons.

William's younger brother, Prince Harry, reportedly helped plan the festivities.

A St. James's Palace spokesman told the magazine, "Anything to do with stag arrangements is completely private."

Last month, the British newspaper The Sun reported that the prince's last hurrah as an unmarried man will include watersports, from speedboat racing to water skiing, followed by a pub crawl by boat.

There's no booze allowed at the stag party while the group is on boats, reports the Sun. That changes after the lads disembark for the pub crawl. "[T]he day ends with a trip up a nearby estuary to visit a string of pubs and restaurants accessible only by boat," writes the Sun. There are also plans for a barbecue.

Part of the reason for water activities is to avoid paparazzi, reports the Sun. The party-goers will stay at a friend's house to cut down on expenses.

And what will the bride-to-be do while the prince is celebrating? According to Us magazine, she is staying in London with her sister (and maid of honor) Pippa, to continue with wedding preparations.