v3.26.1
Cover
6 Months Ended
Mar. 31, 2026
Cover [Abstract]  
Document Type 6-K
Amendment Flag false
Document Period End Date Mar. 31, 2026
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2026
Current Fiscal Year End Date --09-30
Entity File Number 001-42688
Entity Registrant Name 707 CAYMAN HOLDINGS LIMITED
Entity Central Index Key 0002018222
Entity Address, Address Line One 5/F, AIA Financial Centre
Entity Address, Address Line Two 712 Prince Edward Road East
Entity Address, City or Town San Po Kong
Entity Address, Country HK