| Climb Name | Type | Grade | # Ascents Recorded | Notes | Exclude Reason |
|---|---|---|---|---|---|
| Bhai Bon | Boulder problem | 8B+ | 2 | ||
| Bhai Po | Boulder problem | 8B+ | 2 | ||
| Bibop (Assis) | Boulder problem | 8B | 2 | ||
| Big Boss | Boulder problem | 7C | 2 | ||
| Big Fish | Deep water solo | 8c+ | 2 | ||
| Big Fish in a Little Sea | Trad climb | E7 | 2 | ||
| Big Golden | Boulder problem | 7C+ | 2 | ||
| Big Hammer | Sport route | 9a | 2 | ||
| Big Snapper | Boulder problem | 8C | 2 | ||
| Biotronic | Boulder problem | 8B+ | 2 | References[1] https://castlehillbasin.co.nz/node/1020#18/-43.22981/171.71526 |
|
| Bite It and Believe It, Suck It and See | Trad climb | E6 | 2 | ||
| Bitter Sweet | Boulder problem | 8B | 2 | ||
| Bizi Euskaraz Extension | Sport route | 8c+ | 2 | ||
| Black Bean | Sport route | 8b | 2 | ||
| Blackbeard's Tears | Trad climb | E10 | 2 | ||
| Black Love | Trad climb | E8 | 2 | ||
| Black Magic | Trad climb | E5 | 2 | ||
| Black Mamba | Boulder problem | 8B | 2 | ||
| Black Power | Sport route | 8c+ | 2 | ||
| Black Thistle | Trad climb | E10 | 2 | Takes the arete right of Misadventure. References[1] https://ukbouldering.com/board/index.php/topic,31921.msg681377.html#msg681377 |