A Crag Guide gives an extensive view of all sub areas and climbs at a point in the index. It shows a snapshot of the index heirachy, up to 300 climbs (or areas) on a single web page. It shows selected comments climbers have made on a recently submitted ascent.

At a minor crag level this should be suitable for printing and taking with you on a climbing trip as an adjunct to your guidebook.

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Table of contents

1. Submarine Boulder 32 routes in Area

Mostly Boulder

Long/Lat: 171.717690, -43.231342


The Submarine boulder is one of the first areas approached, and includes the obvious submarine-shaped boulder and a few nearby smaller boulder.

Access Issues: inherited from Castle Hill Basin

Some areas are part of Kura Tawhiti Conservation Reserve and managed by the DOC, others are private property.

For access to the main Castle Hill area, you can park in the lot available for the Castle Hill Park which contains some walking trails. These walking trails will also take you to Quantum Field or Spittle Hill. This is one of the easiest areas to get up and get going unless you want to fit in a good hike.

If you want access to Flock Hill, Dry Valley or Cave Stream, take a 10 minute drive further north along 73 to park at the Cave Stream Park area. There will be an obvious park sign. You will then need to take a bit of a hike to get where you need to go.

RouteGradeStyleSelected ascents
1 NO.1 V0 Boulder
2 Fat Slapper V7 Boulder
3 NO.3 VM Unknown
4 No.6 V5 Boulder
5 No. 7 V2 Boulder
6 No. 17

On the left-most of the line of small boulders ~40m N/NW of the Submarine. Mantle the side facing the submarine.

{US} V0 Boulder
7 No. 18

On the left-most of the line of small boulders ~40m N/NW of the Submarine, just around to the right of 'No. 17'. Reach top and step up.

{US} V1 Boulder
8 No. 19

On the left-most of the line of small boulders ~40m N/NW of the Submarine. On opposite face to 'No. 17'. Mantle.

VB- Boulder
9 No. 20

On the left-most of the line of small boulders ~40m N/NW of the Submarine. Start just left of 'No. 17' and reach to jug.

{US} VB Boulder
10 No. 26 V3 Boulder
11 No. 27

On mid-sized of trio of boulders next to Submarine, on South-facing side. Reach top.

{US} VB Boulder
12 No. 28

On mid-sized of trio of boulders next to Submarine, on South-East-facing side. Short featured arete.

{US} VB- Boulder
13 No. 31

On smaller of trio of boulders next to Submarine, on N side (facing the submarine). Big pocket & sloper to start.

{US} V2 Boulder
14 ** No. 34

Follow the amazing holes up the right of the main (North) face of the submarine: the right-hand of the easier lines between 'Undertow' and 'Depth-Charger'.

{US} V2 Boulder
15 NO.36 VE Unknown
16 * No.37 V5 Boulder
17 Undertow V6 Boulder
18 * No.39 V2 Boulder
19 * No.40 V1 Boulder
20 *** Torpedo V4 Boulder
21 *** Red October V6 Boulder
22 Special Forces V5 Boulder
23 * Sonar V2 Boulder
24 No. 43

The easiest way up the submarine boulder: mantle onto big edge and up pockets on slabby face.

{US} V0 Boulder
25 NO.47 V1 Boulder
26 No. 48 V2 Boulder
27 No. 49 V1 Boulder
28 The Terror Scope V1 X Boulder
29 * No. 41 V4 Boulder
30 No. 31 on pockets V1 Boulder
31 No. 33 V2 Boulder
32 No. 35 Arete V4 Boulder

2. Index by grade

Grade Stars Name Style
VB- No. 19 Boulder
No. 28 Boulder
VB No. 20 Boulder
No. 27 Boulder
V0 NO.1 Boulder
No. 17 Boulder
No. 43 Boulder
V1 NO.47 Boulder
No. 18 Boulder
No. 31 on pockets Boulder
No. 49 Boulder
* No.40 Boulder
The Terror Scope Boulder
V2 No. 31 Boulder
No. 33 Boulder
** No. 34 Boulder
No. 48 Boulder
No. 7 Boulder
* No.39 Boulder
* Sonar Boulder
V3 No. 26 Boulder
V4 No. 35 Arete Boulder
* No. 41 Boulder
*** Torpedo Boulder
V5 * No.37 Boulder
No.6 Boulder
Special Forces Boulder
V6 *** Red October Boulder
Undertow Boulder
V7 Fat Slapper Boulder
VE NO.36 Unknown
VM NO.3 Unknown