- Olwolgin Cave

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Address:	New South Wales Australia

Site Description:

Olwolgin Cave has two separate parts, Upstream on the left and Downstream on the right. It is a fragile cave with numerous interesting features: rocks covered in black bacteria, hanging roots, green tannic water, long passages, numerous side passages and big, low flat rooms. Many of the passages are very tight and silty. Both Upstream and Downstream begin in separate small surface lakes. There is approximately 2700m of surveyed passage Upstream and 7200m of passage Downstream. Both Upstream and Downstream are sidemount only and backmounted configurations are not permitted.

Both the upstream and downstream sides of this site are rated Advanced Cave.
No CDAA training of any sort is to be conducted in this site.
Site Access is restricted divers in side mount configuration only. Back mount twins and back mount rebreathers are not permitted.

Access Notes:

Apply in writing or email for permission to dive at least four weeks in advance of trip.
- Email: Proposals@dplh.wa.gov.au
- - Each application must have:
    - Copies of all indemnity forms. Indemnity form can be found here
    - List of attendees in the body of the email.
    - Dates and proposed caves - needs to be in the body of the email.
    - An emergency contact name and number - usually the person applying for the group, needs to be in the body of the email.
    - Copies of valid and current CDAA cards.
- A site indemnity form must be filled out for each visit to the site. Form can be downloaded here.
- Diving permission acknowledged by official letter from Land Owner.
For information regardling local fire restrictions, please visit https://www.dundas.wa.gov.au/news/fire-restrictions/16

Pre-requisites for entry to Olwolgin:
Pre-requisites for entry to Olwolgin are:

Side mount set-up for the planned dives
Must have completed 25 post Advanced Cave certification dives in a combination of Cave and Advanced Cave Rated Sites whilst diving side mount configuration.

In recognition that members must be able to schedule remote dive trips with confidence, it is not required to have these 25 side mount configuration dives prior to booking.

Members however, must be able to demonstrate evidence that the pre-requisite dives took place before diving at Olwolgin. It is recommended members leave a sufficient window of opportunity to complete these dives prior to their trip.

Members must ensure they are able to provide evidence to the National Committee if/when requested to.