Alaya7 wrote:i cant find any information about the three year retreat on that website
That's because there isn't any. Nonetheless, a three-year retreat is in progress there right now.
"All the sublime teachings, so profound--to throw away one and then grab yet another will not bear even a single fruit. Persevere, therefore, in simply one."
--Dudjom Rinpoche, "Nectar for the Hearts of Fortunate Disciples. Song No. 8"