to  → 
 to  → 
 to  → 
Cross The Ditch 20

Cross the Ditch 20

Winter 2021

With trans Tasman flights finally under way again it's time to return to our own massive Trans-Tasman event.

In the second weekend of June pilots from every corner of the globe will descend upon Australia and New Zealand to continue their undaunted quest to Cross the Ditch!

What's it all about?

For twenty hours this June, the skies over the Tasman Sea between Australia and New Zealand will be filled with aircraft all on a mission to Cross the Ditch.

An example of that typical down-under understatement, this "ditch" is over 1100nm wide. The flight routes all range from three to three-and-a-half hours flight time.

Throughout the event, the Oceania region's two divisions will be providing full gate-to-gate ATC coverage, in the Southern Hemisphere's premiere oceanic event.

This is a great opportunity to experience Oceanic flying without the need to commit to an eight-hour flight!

If you're new to Oceanic Flying, our reporting tool makes taking part a breeze along with our FAQ page on Oceanic Procedures

Event Times

This twenty hour event is timed to allow pilots from all over the world to join the fun:

  • UTC: Saturday 12th June 2021 18:00 - Sunday 13th June 2021 14:00
  • AEST: Sunday 13th June 2021 04:00 - Monday 14th June 2021 00:00
  • NZST: Sunday 13th June 2021 06:00 - Monday 14th June 2021 02:00


This season's event is organised in waves. Each airport will have a two-to-four hour departure window, during which time flights will be able to leave for the next destination. As the window closes, the departure window will open at the next destination.

Given each of the flights is 3 - 4.5hrs in length, the previous wave's flights will be arriving at the same airport as the next wave departs, maximising the amount of traffic at each airport.

NOTE: in order to ensure that you have ATC coverage throughout your flight, you MUST fly the wave route that is active at the time of your departure.

The individual routes are designed to ensure as much opposing traffic enroute as possible.

Each flight passes from one Oceania division to the other, and the result is six mini-flyins over the course of twenty hours!

The Airports for Cross the Ditch 20 - Winter 2021 are:

  • VATNZ - New Zealand
    • Christchurch (NZCH
    • Palmerston North (NZPM)
    • Ohakea (NZOH)
    • Auckland (NZAA)
  • VATPAC - Australia
    • Hobart (YMHB)
    • Brisbane (YBBN)
    • Sydney (YSSY)

Cross the Ditch 19 Route Map

Calling all Pilots and Controllers

Flight plans are available from the Flight Plans section.

Book your flights now from the Flight Bookings page. Bookings made on this site help us plan for the event, and will also show up in vroute.

Controllers wanting to get in on the action can also apply now at the event's ATC Applications page.

Cross the Ditch is brought to you by VATPAC and VATNZ
VATNZ - VATSIM New ZealandVATPAC - VATSIM Australia/Pacific


NZAA Auckland, New Zealand

NZCH Christchurch, New Zealand


 CallsignRadio NameFrequencyFreq
FSSNZZO_FSSAuckland Radio129.000
CTRNZAA_CTRAuckland Control123.900
 NZCH-D_CTRChristchurch Director129.200
 NZCH-S_CTRChristchurch Control129.300
 NZCH-T_CTRChristchurch Control123.700
 NZOH_CTROhakea Control126.200
APPNZAA-F_APPAuckland Approach129.600
 NZAA_APPAuckland Approach124.300
 NZCH_APPChristchurch Approach126.100
 NZOH_APPOhakea Approach125.100
TWRNZAA_TWRAuckland Tower118.700
 NZCH_TWRChristchurch Tower118.400
 NZOH_TWROhakea Tower134.500
 NZPM_TWRPalmerston North Tower120.600
GNDNZAA_GNDAuckland Ground121.900
 NZCH_GNDChristchurch Ground121.900
DELNZAA_DELAuckland Delivery128.200
 NZCH_DELChristchurch Delivery128.200

Flight and ATC Bookings

We encourage pilots and controllers alike to book your intention to fly or provide ATC using vroute.

These bookings display on the VATNZ website and allow others to know when and where to expect pilots and controllers to be online.

VATNZ Events Mailing List

To keep up to date with all the events taking place in the VATNZ division, subscribe to the VATNZ Events Mailing List. Receive reminder emails before each event detailing what's happening and where.

Manage your VATNZ Mailing List subscriptions