Canggu's usual model is free entry with the money in the seat. FINNS has free entry, adults only, and lists seven bar areas as free social spaces with no booking amount, so a walk-in, one-drink sunset is a real option at the biggest club on the beach. La Brisa says there's no entrance fee either, and its tables without a minimum spend are first come, first served. At both, the paid product is the daybed, not the door.
La Brisa is the one venue here that publishes minimum spends: IDR 700,000++ to IDR 2,600,000++ per table on premium seating. The "++" is 8% service charge and 10% government tax, so IDR 700,000 becomes about IDR 826,000, and the minimum buys food and drink rather than reducing the bill. La Brisa also takes no same-day bookings and stops taking bookings at 3.30pm, so for a six o'clock sunset you're a walk-in whatever you planned.
Atlas sells the straightforward ticket: a day pass at IDR 300,000 with a welcome drink, pool access and towel hire. The third model is no published price. The Lawn, COMO Beach Club and Café del Mar sell seats, and none publishes a rate, minimum spend or daybed price anywhere we could read. That means agreeing to a number after you arrive. Ask for the all-in rate on your seat when you book, and whether tax and service are included. On this coast they usually aren't.
At a beachfront club you're paying for the daybed, the pool, the toilets and the DJ, not the sunset, which is free and identical fifty metres away on the sand. That's a fair trade if you want the daybed, and a bad one if you just wanted to watch the sun go down.