澳大利亚旅游签证ETA

刚才上了大使馆的网站，看到有两种签证，旅游的，有676的，还有一种是ETA的，我在游四海旅游上大致搜了下，大家都是办676的，但我的问题是可不可以只办ETA的，不用办676的了？

还是不管怎样都必须办676的，而且还要办ETA？

Who is this ETA (Visitor) for?

An ETA (Visitor) (subclass 976) visa is designed for people who are outside Australia and want to visit Australia for holidays, tourism, recreation or for informal study.

Who is this visa for?

This visa（676） is available to all passport holders who are Australia and want to apply for a visa to visit Australia in Australia and want to extend your stay as a visitor.

Certain tourists are also eligible to apply for an Electronic Travel Authority (ETA) or an eVisitor.

这是费用：

ETA (Visitor) (subclass 976)

Note: A service charge of $20.00 applies

Tourist visa (subclass 676) $105