Working Holiday Visa obligatoire pour le woofing?

Which Visa do I need to WWOOF?

You must arrange your entry visa to Australia before you join WWOOF.
Memberships will not be refunded if you cannot obtain an entry visa. WWOOF Pty Ltd and WWOOF hosts cannot assist with travel costs or visa applications or letters of invitation, so please do not ask.
The Australian Department of Home Affairs has information about visas, these are some visas that allow WWOOFing:

• Working Holiday Visa (417)
• Working Holiday Visa (462)
• Visitor Visa - Tourist Stream (subclass 600) *see note below
• Electronic Travel Authority (subclass 601), *see note below
• eVisitor (subclass 651),
• Student Visa,

Home Affairs say this about Visitor Visas - Tourist stream:
This visa lets you:

• visit family or friends
• be here as a tourist, for a cruise or for any purpose except business or medical treatment

You can study or train for up to 3 months in total on this visa. But if your main reason for travelling to Australia is study, a student visa might be more appropriate.
You can't work*.
*Volunteering is not considered work by Home Affairs, who define volunteering as follows:
Volunteer work is work that:

• is unpaid (you can be provided with meals, accommodation or out-of-pocket living expenses)
• would not otherwise be done by an Australian for pay
• is short term
• is incidental to your visit to Australia
• is done for a not-for-profit organisation
• benefits the community

The Visitor visa does not offer the wide scope of options that are available to those who are holders of Working Holiday or Work and Holiday visas which both permit paid work as well as volunteering.