Another option is to use satellite communications. But it can also be blocked if necessary.
Can you use satellite communication to connect your Bitcoin node to the internet?
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Absolutely. One example is Blockstream Satellite
Blockstream Satellite broadcasts the Bitcoin blockchain to the entire planet via satellite, reducing Bitcoin’s dependency on internet access. Everyone in the world now has an opportunity to use Bitcoin.
You can also use other companies like Iridium or Starlink to have Internet through satellite.
Or even pigeons under RFC 1149 :)
On 28 April 2001, IPoAC was implemented by the Bergen Linux user group, under the name CPIP (for Carrier Pigeon Internet Protocol).[4] They sent nine packets over a distance of approximately 5 km (3 mi), each carried by an individual pigeon and containing one ping (ICMP echo request), and received four responses.
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