William Hill are handing their new casino customers 200 free spins on Big Bass Splash, one of the most played slots in the UK, for a £10 deposit and stake. At 10p a spin, that is £20 of play on a game most people already know their way around, and 200 spins give you a genuine crack at the bonus round rather than a quick dip.How to claim your 200 free spinsRegistration only takes a few minutes.Register at William Hill Vegas with the code WHV200.Opt in on the promotion page once your account is verified.Deposit £10 or more within seven days of opting in.Stake that £10 on Big Bass Splash.The 200 spins arrive automatically. Relaunch the game if they are not showing.Note that Apple Pay, PayPal and Paysafe deposits do not qualify, along with a handful of payment cards with ranges listed in the terms.What you are playingBig Bass Splash is Pragmatic Play’s fifth outing for the fisherman, on a 5×3 grid with 10 paylines, and it has earned its place as one of the most played slots in the UK.The free spins round is where it comes alive. Three or more scatters get you in, and then it is all about the Fisherman wild: land him alongside a fish money symbol, and he collects the cash value and hands it over. Collect four fishermen, and you are rewarded with 10 extra spins with a multiplier on those money values, climbing from 2x to 3x and topping out at 10x on the third retrigger. It is high volatility, so the bonus can keep you waiting. Two hundred spins gives you a fair few attempts at coaxing it out.Give yourself a clear run at itThe one thing worth planning around is the 72-hour window, because this offer works a little differently to the wager-free deals some rivals run.Your spins last 72 hours from being credited. Anything you win from them arrives as bonus funds rather than cash: once all 200 spins are used, the winnings land in your Restricted Funds and need wagering 10 times on Big Bass Splash, within that same window, before you can withdraw. The promotion pays out a maximum of £30.None of which is hard work if you claim it when you have an evening or two free. Just worth picking your moment rather than opting in on the way out of the door.Bonus codeWHV200, at registration onlyOffer200 free spins, 10p eachDeposit and stake£10, on Big Bass SplashSpin expiry72 hoursWagering10x on winnings, same 72-hour windowMaximum withdrawal£30Offer ends31 December 2026OperatorWHG (International) Limited, UKGC account 39225EligibilityNew UK customers, 18+, one per person, address, email or IPFAQ1. How do I claim my 200 free spins at William Hill? Sign up with code WHV200, opt in on the promotions page, then deposit and stake £10 on Big Bass Splash within seven days. The spins are credited automatically.2. How do I enter a bonus code on William Hill? There is a promo code box on the registration form. It has to go in there before you finish signing up, as the code cannot be applied to an existing account.3. Can I use the free spins on any game? No. All 200 are locked to Big Bass Splash, and your qualifying £10 stake has to go on the same game.About the authorDaniel SmythDaniel Smyth has seen the online poker, casino, and betting industry from every angle. He previously played poker semi-professionally before working at WPT Magazine as a writer and editor. From there, he transitioned to online gaming where he’s been producing expert content for over 10 years.Follow Daniel on Twitter and LinkedInRemember to gamble responsiblyA responsible gambler is someone who:Establishes time and monetary limits before playingOnly gambles with money they can afford to loseNever chase their lossesDoesn’t gamble if they’re upset, angry or depressedGamcare – www.gamcare.org.ukFind our detailed guide on responsible gambling practices here.For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or go to www.gamstop.co.uk to be excluded from all UK-regulated gambling websites.Commercial content notice: Taking one of the casino offers featured in this article may result in a payment to talkSPORT. 18+. T&Cs apply.