| Cover | Aug. 27, 2021 |
| Affiliate, Collateralized Security [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 27, 2021 |
| Entity File Number | 001-39802 |
| Entity Registrant Name | BLUE WATER ACQUISITION CORP. |
| Entity Central Index Key | 0001817944 |
| Entity Tax Identification Number | 85-1231852 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 15 E. Putnam Avenue |
| Entity Address, Address Line Two | Suite 363 |
| Entity Address, City or Town | Greenwich |
| Entity Address, State or Province | CT |
| Entity Address, Postal Zip Code | 06830 |
| City Area Code | (646) |
| Local Phone Number | 303-0737 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of Class A Common Stock and one Redeemable Warrant | |
| Affiliate, Collateralized Security [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A Common Stock and one Redeemable Warrant |
| Trading Symbol | BLUWU |
| Security Exchange Name | NASDAQ |
| Class A Common Stock, par value $0.0001 per share | |
| Affiliate, Collateralized Security [Line Items] | |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | BLUW |
| Security Exchange Name | NASDAQ |
| Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share | |
| Affiliate, Collateralized Security [Line Items] | |
| Title of 12(b) Security | Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share |
| Trading Symbol | BLUWW |
| Security Exchange Name | NASDAQ |
