"I do book seperately but at times like a good bit of ABTA protection!"
Totally understand this. It all depends on your appetite for risk. Although ATOL and ABTA protection only kick in if they go bankrupt. They don’t cover any of the things that travel insurers often do, like cancelled flights, medical expenses or lost luggage.
"...the Exoticca website for packages"
I've never heard of them before so just did a quick search and they are doing some very cheap deals at the moment. Twelve days in Japan for £1,799 during the first half of June and £2,349 on dates in the second half of June.
For example, leaving Saturday 12th June is £1,799 and leaving a week later Saturday 19th June is £2,349.
Just for others reading this, the itinerary appears to be four days in Tokyo, then a day travelling to Kyoto.
Two days in Kyoto and then a day travelling to Hiroshima and a day travelling to Osaka.
Then there is one full day in Osaka before returning to the UK.
When it comes to hotels, they say:
"Allocation depends on availability and seasonality, so you may be assigned any hotel from our selection."
They do sound as though they are just picking up cheap deals and then passing them on to customers.
Might I suggest that you also post on this thread:
https://www.mumsnet.com/talk/holidays/5482261-japan-planning-thread-3
There are a number of posters there who have been to Japan a number of times and you will likely get some helpful advice as to what to do.
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You might also wish to consider their land-only prices (ie without airfares - these would still be covered by ABTA but not by ATOL).
There are a number of Facebook groups relating to Exxotica.
For example this from last year from the group "Exoticca Travel Experience":
"Looking for advices…
Have anyone booked « Land only » with Exoticca? Wondering if it’s worth it or not?
It’s for 2 adults and our 13yo (counts as an adult)…interested in the Japan tour."
There were a number of replies giving different experiences. One person said:
"I have booked three land only tours with Exoticca. You will need to call them direct to get the land only price. I found the price difference on these three was worth me booking separately. One I enquired about they were only giving off £100 so it wasn't worth it. "
https://www.facebook.com/groups/1986141971735780/posts/2589622298054408/
A useful site to look for flights only from the UK is https://www.kayak.co.uk/
However, I will just use that for searching for flights and then I will book directly with the airline.