Would you provide a verse in the Quran or Hadiths which shows the Garden of Eden was in
heaven? Or are you speculating?
location is found in Genesis 2:10-14, “A river watering the garden
flowed from Eden; from there it was separated into four headwaters.
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: Saihan, Jaihan, Euphrates and Nile are all among the rivers of Paradise. *
Sahih Muslim - Book of Paradise - 6807
إِنَّ الَّذينَ ءامَنوا وَعَمِلُوا الصّٰلِحٰتِ أُولٰئِكَ هُم خَيرُ البَرِيَّةِ
Those who have faith and do righteous deeds,- they are the best of creatures.
Yجَزاؤُهُم عِندَ رَبِّهِم جَنّٰتُ عَدنٍ تَجرى مِن تَحتِهَا الأَنهٰرُ خٰلِدينَ فيها أَبَدًا ۖ رَضِىَ اللَّهُ عَنهُم وَرَضوا عَنهُ ۚ ذٰلِكَ لِمَن خَشِىَ رَبَّهُ
Their reward is with Allah: Gardens of Eternity, beneath which rivers flow; they will dwell therein for ever; Allah well pleased with them, and they with Him: all this for such as fear their Lord and Cherisher.
verses 7-8 of chapter 98. البينة - Holy Quran
Translation by Abdullah Yusuf Ali
Where he translated "Gardens of Eternity"
It says in Arabic جَنّٰتُ عَدنٍ which is JANNATU 'ADN
which could mean "Garden of Eden", or hidden Eden.
You'll also find that the term Eden used in English is an untranslated variation of a semitic word (most likely Hebrew or Aramaic).
So, if you assume God will send you to the middle east after you die, you'd also probably come to the idea that you can buy a plane ticket to paradise for around £400+vat, and that condolezza rice goes there regularly, and that Halliburton even get contracts there.
The Jews say that God promised to give them a land flowing with milk and honey so they claimed it's Palestine.
I have yet to see that discovery of any rivers of that type there.
Here's what the Quran tell us:
مَثَلُ الجَنَّةِ الَّتى وُعِدَ المُتَّقونَ ۖ فيها أَنهٰرٌ مِن ماءٍ غَيرِ ءاسِنٍ وَأَنهٰرٌ مِن لَبَنٍ لَم يَتَغَيَّر طَعمُهُ وَأَنهٰرٌ مِن خَمرٍ لَذَّةٍ لِلشّٰرِبينَ وَأَنهٰرٌ مِن عَسَلٍ مُصَفًّى ۖ وَلَهُم فيها مِن كُلِّ الثَّمَرٰتِ وَمَغفِرَةٌ مِن رَبِّهِم ۖ كَمَن هُوَ خٰلِدٌ فِى النّارِ وَسُقوا ماءً حَميمًا فَقَطَّعَ أَمعاءَهُم
(Here is) a Parable of the Garden which the righteous are promised:
in it are rivers of water incorruptible; rivers of milk of which the taste never changes; rivers of wine, a joy to those who drink; and rivers of honey pure and clear. In it there are for them all kinds of fruits; and Grace from their Lord. (Can those in such Bliss) be compared to such as shall dwell for ever in the Fire, and be given, to drink, boiling water, so that it cuts up their bowels (to pieces)?
Quran chapter 47, verse 15
Those are all from Hadith and Quran,
Hope that clears up some misconceptions