Entrravel Group, a cryptocurrency travel infrastructure company, has raised $7.5 million in funding, led by Joseph Lubin's Ethereal Ventures and Finals Capital, with participation from GSR, Varrock, G1 Ventures, Seier Capital, and others. Entrravel provides travel booking systems for platforms such as Kraken and MetaMask, currently serving over 40 brands. Entrravel plans to use funds to expand supplier credit, increase booking volume, enter the traditional tourism market, and build a stablecoin based financial system.