Where do we go after death?

[Infinite]

These questions are not easy of answer because each entity is unique and there are many possibilities.

I'm wondering though, where exactly does one go after death, if one is a Wanderer?  

As general rule, every entity goes to time/space or metaphysical portion of third density. This is also called inner planes being the astral plane the afterlife or the plane closest of the physical plane. The Wanderer will inhabit the sub-planes compatible with your original vibration, but this depends of their vibrations and karmic situation. The time/space is a reflex of the vibratory level of the entities.

As an ET soul, do we start doing ET things again, if we're finished with 3rd density?  

70.15 Questioner: I think to try and clear up this point I’m going to ask a few questions that are related that will possibly enable me to understand this better because I am really confused about this and I think it is a very important point in understanding the creation and the Creator in general, you might say. If a Wanderer of fourth, fifth, or sixth density dies from this third-density state in which we presently find ourselves, does he then find himself in third-density time/space after death?

Ra: I am Ra. This will depend upon the plan which has been approved by the Council of Nine. Some Wanderers offer themselves for but one incarnation while others offer themselves for varying lengths of your time up to and including the last two cycles of 25,000 years. If the agreed-upon mission is complete the Wanderer’s mind/body/spirit complex will go to the home vibration.

I'm trying to figure out what life is like in 4th, 5th or 6th density.  I know time doesn't really exist in the upper densities, but what would our day to day activities be?  Flying around in UFOs?

The life in higher densities is much more free then here. The bodies are much more filled with light and responds much more easily and instantly to the will of indigo ray center. Thus, is possible build what the entity desire although the levels depends of the disciplines of personality.

About the transport, many in fourth density still use devices to transport until the disciplines of personality is developed to levitation/flight and teleportation.

Talking about STO entities, the way of live is living on love. Without the veil the love is so obvious that the only action desired is to serve others. So, this love must be balanced with wisdom until the unity is reached. This is the work of fourth until sixth density. As Ra said, fourth density is a density of social memory complex, so the evolution is of a planet as a whole. Fifth density is more "free" because is possible live without a social memory complex while sixth density is the density of unity and apparently the social memory complex is the "rule".